KILLED
proof of input_5lurnGPEtM.trs
# AProVE Commit ID: 5b976082cb74a395683ed8cc7acf94bd611ab29f fuhs 20230524 unpublished


The Runtime Complexity (parallel-innermost) of the given CpxTRS could be proven to be BOUNDS(1, INF).

(0) CpxTRS
(1) RenamingProof [BOTH BOUNDS(ID, ID), 0 ms]
(2) CpxTRS
(3) RelTrsToTrsProof [UPPER BOUND(ID), 0 ms]
(4) CpxTRS
(5) RelTrsToWeightedTrsProof [UPPER BOUND(ID), 0 ms]
(6) CpxWeightedTrs
    (7) TypeInferenceProof [BOTH BOUNDS(ID, ID), 0 ms]
    (8) CpxTypedWeightedTrs
    (9) CompletionProof [UPPER BOUND(ID), 0 ms]
    (10) CpxTypedWeightedCompleteTrs
    (11) CompletionProof [UPPER BOUND(ID), 0 ms]
    (12) CpxTypedWeightedCompleteTrs
        (13) CpxTypedWeightedTrsToRntsProof [UPPER BOUND(ID), 12 ms]
        (14) CpxRNTS
(15) CpxTrsToCdtProof [UPPER BOUND(ID), 60 ms]
(16) CdtProblem
    (17) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (18) CdtProblem
    (19) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (20) CdtProblem
    (21) CdtGraphSplitRhsProof [BOTH BOUNDS(ID, ID), 16 ms]
    (22) CdtProblem
    (23) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (24) CdtProblem
    (25) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (26) CdtProblem
    (27) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (28) CdtProblem
    (29) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (30) CdtProblem
    (31) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (32) CdtProblem
    (33) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (34) CdtProblem
    (35) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 190 ms]
    (36) CdtProblem
    (37) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (38) CdtProblem
    (39) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 202 ms]
    (40) CdtProblem
    (41) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (42) CdtProblem
    (43) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 113 ms]
    (44) CdtProblem
    (45) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (46) CdtProblem
    (47) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 3 ms]
    (48) CdtProblem
    (49) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 1 ms]
    (50) CdtProblem
    (51) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (52) CdtProblem
    (53) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (54) CdtProblem
    (55) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 10 ms]
    (56) CdtProblem
    (57) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (58) CdtProblem
    (59) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (60) CdtProblem
    (61) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (62) CdtProblem
    (63) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (64) CdtProblem
    (65) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (66) CdtProblem
    (67) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (68) CdtProblem
    (69) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (70) CdtProblem
    (71) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (72) CdtProblem
    (73) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (74) CdtProblem
    (75) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (76) CdtProblem
    (77) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 9 ms]
    (78) CdtProblem
    (79) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (80) CdtProblem
    (81) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (82) CdtProblem
    (83) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (84) CdtProblem
    (85) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (86) CdtProblem
    (87) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (88) CdtProblem
    (89) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (90) CdtProblem
    (91) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (92) CdtProblem
    (93) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (94) CdtProblem
    (95) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (96) CdtProblem
    (97) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 2 ms]
    (98) CdtProblem
    (99) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 3 ms]
    (100) CdtProblem
    (101) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 91 ms]
    (102) CdtProblem
    (103) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (104) CdtProblem
    (105) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 77 ms]
    (106) CdtProblem
    (107) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (108) CdtProblem
    (109) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (110) CdtProblem
    (111) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 13 ms]
    (112) CdtProblem
    (113) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 8 ms]
    (114) CdtProblem
    (115) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (116) CdtProblem
    (117) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (118) CdtProblem
    (119) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (120) CdtProblem
    (121) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (122) CdtProblem
    (123) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (124) CdtProblem
    (125) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (126) CdtProblem
    (127) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 12 ms]
    (128) CdtProblem
    (129) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (130) CdtProblem
    (131) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 26 ms]
    (132) CdtProblem
    (133) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (134) CdtProblem
    (135) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 0 ms]
    (136) CdtProblem
    (137) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (138) CdtProblem
    (139) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 12 ms]
    (140) CdtProblem
    (141) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (142) CdtProblem
    (143) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 270 ms]
    (144) CdtProblem
    (145) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 20 ms]
    (146) CdtProblem
    (147) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (148) CdtProblem
    (149) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 201 ms]
    (150) CdtProblem
    (151) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 12 ms]
    (152) CdtProblem
    (153) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 2 ms]
    (154) CdtProblem
    (155) CdtNarrowingProof [BOTH BOUNDS(ID, ID), 275 ms]
    (156) CdtProblem
    (157) CdtLeafRemovalProof [BOTH BOUNDS(ID, ID), 0 ms]
    (158) CdtProblem
    (159) CdtRhsSimplificationProcessorProof [BOTH BOUNDS(ID, ID), 0 ms]
    (160) CdtProblem


----------------------------------------

(0)
Obligation:
The Runtime Complexity (parallel-innermost) of the given CpxTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N)
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N)
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N)
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N))
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2)
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2)
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2)
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2)
   a__U15(tt, V2) -> a__U16(a__isNat(V2))
   a__U16(tt) -> tt
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1)
   a__U22(tt, V1) -> a__U23(a__isNat(V1))
   a__U23(tt) -> tt
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2)
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2)
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2)
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2)
   a__U35(tt, V2) -> a__U36(a__isNat(V2))
   a__U36(tt) -> tt
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2))
   a__U42(tt) -> tt
   a__U51(tt) -> tt
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2))
   a__U62(tt) -> tt
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N)
   a__U72(tt, N) -> mark(N)
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N)
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N)
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N)
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M)))
   a__U91(tt, N) -> a__U92(a__isNatKind(N))
   a__U92(tt) -> 0
   a__isNat(0) -> tt
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2)
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1)
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2)
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1))
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2)
   a__plus(N, 0) -> a__U71(a__isNat(N), N)
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N)
   a__x(N, 0) -> a__U91(a__isNat(N), N)
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N)
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3)
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3)
   mark(isNatKind(X)) -> a__isNatKind(X)
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3)
   mark(isNat(X)) -> a__isNat(X)
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3)
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2))
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2))
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3)
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3)
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3)
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3)
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2)
   mark(U16(X)) -> a__U16(mark(X))
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2)
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2)
   mark(U23(X)) -> a__U23(mark(X))
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3)
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3)
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3)
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3)
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2)
   mark(U36(X)) -> a__U36(mark(X))
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2)
   mark(U42(X)) -> a__U42(mark(X))
   mark(U51(X)) -> a__U51(mark(X))
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2)
   mark(U62(X)) -> a__U62(mark(X))
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2)
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2)
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3)
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3)
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3)
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3)
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2)
   mark(U92(X)) -> a__U92(mark(X))
   mark(tt) -> tt
   mark(s(X)) -> s(mark(X))
   mark(0) -> 0
   a__U101(X1, X2, X3) -> U101(X1, X2, X3)
   a__U102(X1, X2, X3) -> U102(X1, X2, X3)
   a__isNatKind(X) -> isNatKind(X)
   a__U103(X1, X2, X3) -> U103(X1, X2, X3)
   a__isNat(X) -> isNat(X)
   a__U104(X1, X2, X3) -> U104(X1, X2, X3)
   a__plus(X1, X2) -> plus(X1, X2)
   a__x(X1, X2) -> x(X1, X2)
   a__U11(X1, X2, X3) -> U11(X1, X2, X3)
   a__U12(X1, X2, X3) -> U12(X1, X2, X3)
   a__U13(X1, X2, X3) -> U13(X1, X2, X3)
   a__U14(X1, X2, X3) -> U14(X1, X2, X3)
   a__U15(X1, X2) -> U15(X1, X2)
   a__U16(X) -> U16(X)
   a__U21(X1, X2) -> U21(X1, X2)
   a__U22(X1, X2) -> U22(X1, X2)
   a__U23(X) -> U23(X)
   a__U31(X1, X2, X3) -> U31(X1, X2, X3)
   a__U32(X1, X2, X3) -> U32(X1, X2, X3)
   a__U33(X1, X2, X3) -> U33(X1, X2, X3)
   a__U34(X1, X2, X3) -> U34(X1, X2, X3)
   a__U35(X1, X2) -> U35(X1, X2)
   a__U36(X) -> U36(X)
   a__U41(X1, X2) -> U41(X1, X2)
   a__U42(X) -> U42(X)
   a__U51(X) -> U51(X)
   a__U61(X1, X2) -> U61(X1, X2)
   a__U62(X) -> U62(X)
   a__U71(X1, X2) -> U71(X1, X2)
   a__U72(X1, X2) -> U72(X1, X2)
   a__U81(X1, X2, X3) -> U81(X1, X2, X3)
   a__U82(X1, X2, X3) -> U82(X1, X2, X3)
   a__U83(X1, X2, X3) -> U83(X1, X2, X3)
   a__U84(X1, X2, X3) -> U84(X1, X2, X3)
   a__U91(X1, X2) -> U91(X1, X2)
   a__U92(X) -> U92(X)

S is empty.
Rewrite Strategy: PARALLEL_INNERMOST
----------------------------------------

(1) RenamingProof (BOTH BOUNDS(ID, ID))
Renamed function symbols to avoid clashes with predefined symbol.
----------------------------------------

(2)
Obligation:
The Runtime Complexity (parallel-innermost) of the given CpxTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N)
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N)
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N)
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N))
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2)
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2)
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2)
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2)
   a__U15(tt, V2) -> a__U16(a__isNat(V2))
   a__U16(tt) -> tt
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1)
   a__U22(tt, V1) -> a__U23(a__isNat(V1))
   a__U23(tt) -> tt
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2)
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2)
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2)
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2)
   a__U35(tt, V2) -> a__U36(a__isNat(V2))
   a__U36(tt) -> tt
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2))
   a__U42(tt) -> tt
   a__U51(tt) -> tt
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2))
   a__U62(tt) -> tt
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N)
   a__U72(tt, N) -> mark(N)
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N)
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N)
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N)
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M)))
   a__U91(tt, N) -> a__U92(a__isNatKind(N))
   a__U92(tt) -> 0'
   a__isNat(0') -> tt
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2)
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1)
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2)
   a__isNatKind(0') -> tt
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2)
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1))
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2)
   a__plus(N, 0') -> a__U71(a__isNat(N), N)
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N)
   a__x(N, 0') -> a__U91(a__isNat(N), N)
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N)
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3)
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3)
   mark(isNatKind(X)) -> a__isNatKind(X)
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3)
   mark(isNat(X)) -> a__isNat(X)
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3)
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2))
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2))
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3)
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3)
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3)
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3)
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2)
   mark(U16(X)) -> a__U16(mark(X))
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2)
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2)
   mark(U23(X)) -> a__U23(mark(X))
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3)
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3)
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3)
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3)
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2)
   mark(U36(X)) -> a__U36(mark(X))
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2)
   mark(U42(X)) -> a__U42(mark(X))
   mark(U51(X)) -> a__U51(mark(X))
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2)
   mark(U62(X)) -> a__U62(mark(X))
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2)
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2)
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3)
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3)
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3)
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3)
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2)
   mark(U92(X)) -> a__U92(mark(X))
   mark(tt) -> tt
   mark(s(X)) -> s(mark(X))
   mark(0') -> 0'
   a__U101(X1, X2, X3) -> U101(X1, X2, X3)
   a__U102(X1, X2, X3) -> U102(X1, X2, X3)
   a__isNatKind(X) -> isNatKind(X)
   a__U103(X1, X2, X3) -> U103(X1, X2, X3)
   a__isNat(X) -> isNat(X)
   a__U104(X1, X2, X3) -> U104(X1, X2, X3)
   a__plus(X1, X2) -> plus(X1, X2)
   a__x(X1, X2) -> x(X1, X2)
   a__U11(X1, X2, X3) -> U11(X1, X2, X3)
   a__U12(X1, X2, X3) -> U12(X1, X2, X3)
   a__U13(X1, X2, X3) -> U13(X1, X2, X3)
   a__U14(X1, X2, X3) -> U14(X1, X2, X3)
   a__U15(X1, X2) -> U15(X1, X2)
   a__U16(X) -> U16(X)
   a__U21(X1, X2) -> U21(X1, X2)
   a__U22(X1, X2) -> U22(X1, X2)
   a__U23(X) -> U23(X)
   a__U31(X1, X2, X3) -> U31(X1, X2, X3)
   a__U32(X1, X2, X3) -> U32(X1, X2, X3)
   a__U33(X1, X2, X3) -> U33(X1, X2, X3)
   a__U34(X1, X2, X3) -> U34(X1, X2, X3)
   a__U35(X1, X2) -> U35(X1, X2)
   a__U36(X) -> U36(X)
   a__U41(X1, X2) -> U41(X1, X2)
   a__U42(X) -> U42(X)
   a__U51(X) -> U51(X)
   a__U61(X1, X2) -> U61(X1, X2)
   a__U62(X) -> U62(X)
   a__U71(X1, X2) -> U71(X1, X2)
   a__U72(X1, X2) -> U72(X1, X2)
   a__U81(X1, X2, X3) -> U81(X1, X2, X3)
   a__U82(X1, X2, X3) -> U82(X1, X2, X3)
   a__U83(X1, X2, X3) -> U83(X1, X2, X3)
   a__U84(X1, X2, X3) -> U84(X1, X2, X3)
   a__U91(X1, X2) -> U91(X1, X2)
   a__U92(X) -> U92(X)

S is empty.
Rewrite Strategy: PARALLEL_INNERMOST
----------------------------------------

(3) RelTrsToTrsProof (UPPER BOUND(ID))
transformed relative TRS to TRS
----------------------------------------

(4)
Obligation:
The Runtime Complexity (parallel-innermost) of the given CpxTRS could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N)
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N)
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N)
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N))
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2)
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2)
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2)
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2)
   a__U15(tt, V2) -> a__U16(a__isNat(V2))
   a__U16(tt) -> tt
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1)
   a__U22(tt, V1) -> a__U23(a__isNat(V1))
   a__U23(tt) -> tt
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2)
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2)
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2)
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2)
   a__U35(tt, V2) -> a__U36(a__isNat(V2))
   a__U36(tt) -> tt
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2))
   a__U42(tt) -> tt
   a__U51(tt) -> tt
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2))
   a__U62(tt) -> tt
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N)
   a__U72(tt, N) -> mark(N)
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N)
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N)
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N)
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M)))
   a__U91(tt, N) -> a__U92(a__isNatKind(N))
   a__U92(tt) -> 0
   a__isNat(0) -> tt
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2)
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1)
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2)
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1))
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2)
   a__plus(N, 0) -> a__U71(a__isNat(N), N)
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N)
   a__x(N, 0) -> a__U91(a__isNat(N), N)
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N)
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3)
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3)
   mark(isNatKind(X)) -> a__isNatKind(X)
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3)
   mark(isNat(X)) -> a__isNat(X)
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3)
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2))
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2))
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3)
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3)
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3)
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3)
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2)
   mark(U16(X)) -> a__U16(mark(X))
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2)
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2)
   mark(U23(X)) -> a__U23(mark(X))
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3)
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3)
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3)
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3)
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2)
   mark(U36(X)) -> a__U36(mark(X))
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2)
   mark(U42(X)) -> a__U42(mark(X))
   mark(U51(X)) -> a__U51(mark(X))
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2)
   mark(U62(X)) -> a__U62(mark(X))
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2)
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2)
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3)
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3)
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3)
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3)
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2)
   mark(U92(X)) -> a__U92(mark(X))
   mark(tt) -> tt
   mark(s(X)) -> s(mark(X))
   mark(0) -> 0
   a__U101(X1, X2, X3) -> U101(X1, X2, X3)
   a__U102(X1, X2, X3) -> U102(X1, X2, X3)
   a__isNatKind(X) -> isNatKind(X)
   a__U103(X1, X2, X3) -> U103(X1, X2, X3)
   a__isNat(X) -> isNat(X)
   a__U104(X1, X2, X3) -> U104(X1, X2, X3)
   a__plus(X1, X2) -> plus(X1, X2)
   a__x(X1, X2) -> x(X1, X2)
   a__U11(X1, X2, X3) -> U11(X1, X2, X3)
   a__U12(X1, X2, X3) -> U12(X1, X2, X3)
   a__U13(X1, X2, X3) -> U13(X1, X2, X3)
   a__U14(X1, X2, X3) -> U14(X1, X2, X3)
   a__U15(X1, X2) -> U15(X1, X2)
   a__U16(X) -> U16(X)
   a__U21(X1, X2) -> U21(X1, X2)
   a__U22(X1, X2) -> U22(X1, X2)
   a__U23(X) -> U23(X)
   a__U31(X1, X2, X3) -> U31(X1, X2, X3)
   a__U32(X1, X2, X3) -> U32(X1, X2, X3)
   a__U33(X1, X2, X3) -> U33(X1, X2, X3)
   a__U34(X1, X2, X3) -> U34(X1, X2, X3)
   a__U35(X1, X2) -> U35(X1, X2)
   a__U36(X) -> U36(X)
   a__U41(X1, X2) -> U41(X1, X2)
   a__U42(X) -> U42(X)
   a__U51(X) -> U51(X)
   a__U61(X1, X2) -> U61(X1, X2)
   a__U62(X) -> U62(X)
   a__U71(X1, X2) -> U71(X1, X2)
   a__U72(X1, X2) -> U72(X1, X2)
   a__U81(X1, X2, X3) -> U81(X1, X2, X3)
   a__U82(X1, X2, X3) -> U82(X1, X2, X3)
   a__U83(X1, X2, X3) -> U83(X1, X2, X3)
   a__U84(X1, X2, X3) -> U84(X1, X2, X3)
   a__U91(X1, X2) -> U91(X1, X2)
   a__U92(X) -> U92(X)

S is empty.
Rewrite Strategy: PARALLEL_INNERMOST
----------------------------------------

(5) RelTrsToWeightedTrsProof (UPPER BOUND(ID))
Transformed relative TRS to weighted TRS
----------------------------------------

(6)
Obligation:
The Runtime Complexity (innermost) of the given CpxWeightedTrs could be proven to be BOUNDS(1, INF).


The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N) [1]
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N) [1]
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N) [1]
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N)) [1]
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2) [1]
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2) [1]
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2) [1]
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2) [1]
   a__U15(tt, V2) -> a__U16(a__isNat(V2)) [1]
   a__U16(tt) -> tt [1]
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1) [1]
   a__U22(tt, V1) -> a__U23(a__isNat(V1)) [1]
   a__U23(tt) -> tt [1]
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2) [1]
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2) [1]
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2) [1]
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2) [1]
   a__U35(tt, V2) -> a__U36(a__isNat(V2)) [1]
   a__U36(tt) -> tt [1]
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2)) [1]
   a__U42(tt) -> tt [1]
   a__U51(tt) -> tt [1]
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2)) [1]
   a__U62(tt) -> tt [1]
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N) [1]
   a__U72(tt, N) -> mark(N) [1]
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N) [1]
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N) [1]
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N) [1]
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M))) [1]
   a__U91(tt, N) -> a__U92(a__isNatKind(N)) [1]
   a__U92(tt) -> 0 [1]
   a__isNat(0) -> tt [1]
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2) [1]
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1) [1]
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2) [1]
   a__isNatKind(0) -> tt [1]
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2) [1]
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1)) [1]
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2) [1]
   a__plus(N, 0) -> a__U71(a__isNat(N), N) [1]
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N) [1]
   a__x(N, 0) -> a__U91(a__isNat(N), N) [1]
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N) [1]
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3) [1]
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3) [1]
   mark(isNatKind(X)) -> a__isNatKind(X) [1]
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3) [1]
   mark(isNat(X)) -> a__isNat(X) [1]
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3) [1]
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2)) [1]
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2)) [1]
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3) [1]
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3) [1]
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3) [1]
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3) [1]
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2) [1]
   mark(U16(X)) -> a__U16(mark(X)) [1]
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2) [1]
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2) [1]
   mark(U23(X)) -> a__U23(mark(X)) [1]
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3) [1]
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3) [1]
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3) [1]
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3) [1]
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2) [1]
   mark(U36(X)) -> a__U36(mark(X)) [1]
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2) [1]
   mark(U42(X)) -> a__U42(mark(X)) [1]
   mark(U51(X)) -> a__U51(mark(X)) [1]
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2) [1]
   mark(U62(X)) -> a__U62(mark(X)) [1]
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2) [1]
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2) [1]
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3) [1]
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3) [1]
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3) [1]
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3) [1]
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2) [1]
   mark(U92(X)) -> a__U92(mark(X)) [1]
   mark(tt) -> tt [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__U101(X1, X2, X3) -> U101(X1, X2, X3) [1]
   a__U102(X1, X2, X3) -> U102(X1, X2, X3) [1]
   a__isNatKind(X) -> isNatKind(X) [1]
   a__U103(X1, X2, X3) -> U103(X1, X2, X3) [1]
   a__isNat(X) -> isNat(X) [1]
   a__U104(X1, X2, X3) -> U104(X1, X2, X3) [1]
   a__plus(X1, X2) -> plus(X1, X2) [1]
   a__x(X1, X2) -> x(X1, X2) [1]
   a__U11(X1, X2, X3) -> U11(X1, X2, X3) [1]
   a__U12(X1, X2, X3) -> U12(X1, X2, X3) [1]
   a__U13(X1, X2, X3) -> U13(X1, X2, X3) [1]
   a__U14(X1, X2, X3) -> U14(X1, X2, X3) [1]
   a__U15(X1, X2) -> U15(X1, X2) [1]
   a__U16(X) -> U16(X) [1]
   a__U21(X1, X2) -> U21(X1, X2) [1]
   a__U22(X1, X2) -> U22(X1, X2) [1]
   a__U23(X) -> U23(X) [1]
   a__U31(X1, X2, X3) -> U31(X1, X2, X3) [1]
   a__U32(X1, X2, X3) -> U32(X1, X2, X3) [1]
   a__U33(X1, X2, X3) -> U33(X1, X2, X3) [1]
   a__U34(X1, X2, X3) -> U34(X1, X2, X3) [1]
   a__U35(X1, X2) -> U35(X1, X2) [1]
   a__U36(X) -> U36(X) [1]
   a__U41(X1, X2) -> U41(X1, X2) [1]
   a__U42(X) -> U42(X) [1]
   a__U51(X) -> U51(X) [1]
   a__U61(X1, X2) -> U61(X1, X2) [1]
   a__U62(X) -> U62(X) [1]
   a__U71(X1, X2) -> U71(X1, X2) [1]
   a__U72(X1, X2) -> U72(X1, X2) [1]
   a__U81(X1, X2, X3) -> U81(X1, X2, X3) [1]
   a__U82(X1, X2, X3) -> U82(X1, X2, X3) [1]
   a__U83(X1, X2, X3) -> U83(X1, X2, X3) [1]
   a__U84(X1, X2, X3) -> U84(X1, X2, X3) [1]
   a__U91(X1, X2) -> U91(X1, X2) [1]
   a__U92(X) -> U92(X) [1]

Rewrite Strategy: INNERMOST
----------------------------------------

(7) TypeInferenceProof (BOTH BOUNDS(ID, ID))
Infered types.
----------------------------------------

(8)
Obligation:
Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N) [1]
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N) [1]
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N) [1]
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N)) [1]
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2) [1]
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2) [1]
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2) [1]
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2) [1]
   a__U15(tt, V2) -> a__U16(a__isNat(V2)) [1]
   a__U16(tt) -> tt [1]
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1) [1]
   a__U22(tt, V1) -> a__U23(a__isNat(V1)) [1]
   a__U23(tt) -> tt [1]
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2) [1]
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2) [1]
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2) [1]
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2) [1]
   a__U35(tt, V2) -> a__U36(a__isNat(V2)) [1]
   a__U36(tt) -> tt [1]
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2)) [1]
   a__U42(tt) -> tt [1]
   a__U51(tt) -> tt [1]
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2)) [1]
   a__U62(tt) -> tt [1]
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N) [1]
   a__U72(tt, N) -> mark(N) [1]
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N) [1]
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N) [1]
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N) [1]
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M))) [1]
   a__U91(tt, N) -> a__U92(a__isNatKind(N)) [1]
   a__U92(tt) -> 0 [1]
   a__isNat(0) -> tt [1]
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2) [1]
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1) [1]
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2) [1]
   a__isNatKind(0) -> tt [1]
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2) [1]
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1)) [1]
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2) [1]
   a__plus(N, 0) -> a__U71(a__isNat(N), N) [1]
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N) [1]
   a__x(N, 0) -> a__U91(a__isNat(N), N) [1]
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N) [1]
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3) [1]
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3) [1]
   mark(isNatKind(X)) -> a__isNatKind(X) [1]
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3) [1]
   mark(isNat(X)) -> a__isNat(X) [1]
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3) [1]
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2)) [1]
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2)) [1]
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3) [1]
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3) [1]
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3) [1]
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3) [1]
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2) [1]
   mark(U16(X)) -> a__U16(mark(X)) [1]
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2) [1]
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2) [1]
   mark(U23(X)) -> a__U23(mark(X)) [1]
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3) [1]
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3) [1]
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3) [1]
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3) [1]
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2) [1]
   mark(U36(X)) -> a__U36(mark(X)) [1]
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2) [1]
   mark(U42(X)) -> a__U42(mark(X)) [1]
   mark(U51(X)) -> a__U51(mark(X)) [1]
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2) [1]
   mark(U62(X)) -> a__U62(mark(X)) [1]
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2) [1]
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2) [1]
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3) [1]
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3) [1]
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3) [1]
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3) [1]
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2) [1]
   mark(U92(X)) -> a__U92(mark(X)) [1]
   mark(tt) -> tt [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__U101(X1, X2, X3) -> U101(X1, X2, X3) [1]
   a__U102(X1, X2, X3) -> U102(X1, X2, X3) [1]
   a__isNatKind(X) -> isNatKind(X) [1]
   a__U103(X1, X2, X3) -> U103(X1, X2, X3) [1]
   a__isNat(X) -> isNat(X) [1]
   a__U104(X1, X2, X3) -> U104(X1, X2, X3) [1]
   a__plus(X1, X2) -> plus(X1, X2) [1]
   a__x(X1, X2) -> x(X1, X2) [1]
   a__U11(X1, X2, X3) -> U11(X1, X2, X3) [1]
   a__U12(X1, X2, X3) -> U12(X1, X2, X3) [1]
   a__U13(X1, X2, X3) -> U13(X1, X2, X3) [1]
   a__U14(X1, X2, X3) -> U14(X1, X2, X3) [1]
   a__U15(X1, X2) -> U15(X1, X2) [1]
   a__U16(X) -> U16(X) [1]
   a__U21(X1, X2) -> U21(X1, X2) [1]
   a__U22(X1, X2) -> U22(X1, X2) [1]
   a__U23(X) -> U23(X) [1]
   a__U31(X1, X2, X3) -> U31(X1, X2, X3) [1]
   a__U32(X1, X2, X3) -> U32(X1, X2, X3) [1]
   a__U33(X1, X2, X3) -> U33(X1, X2, X3) [1]
   a__U34(X1, X2, X3) -> U34(X1, X2, X3) [1]
   a__U35(X1, X2) -> U35(X1, X2) [1]
   a__U36(X) -> U36(X) [1]
   a__U41(X1, X2) -> U41(X1, X2) [1]
   a__U42(X) -> U42(X) [1]
   a__U51(X) -> U51(X) [1]
   a__U61(X1, X2) -> U61(X1, X2) [1]
   a__U62(X) -> U62(X) [1]
   a__U71(X1, X2) -> U71(X1, X2) [1]
   a__U72(X1, X2) -> U72(X1, X2) [1]
   a__U81(X1, X2, X3) -> U81(X1, X2, X3) [1]
   a__U82(X1, X2, X3) -> U82(X1, X2, X3) [1]
   a__U83(X1, X2, X3) -> U83(X1, X2, X3) [1]
   a__U84(X1, X2, X3) -> U84(X1, X2, X3) [1]
   a__U91(X1, X2) -> U91(X1, X2) [1]
   a__U92(X) -> U92(X) [1]

The TRS has the following type information:
a__U101 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
tt :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U102 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__isNatKind :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U103 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__isNat :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U104 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__plus :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__x :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
mark :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U11 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U12 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U13 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U14 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U15 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U16 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U21 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U22 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U23 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U31 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U32 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U33 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U34 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U35 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U36 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U41 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U42 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U51 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U61 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U62 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U71 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U72 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U81 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U82 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U83 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U84 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
s :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U91 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U92 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
0 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
plus :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
x :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U101 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U102 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
isNatKind :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U103 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
isNat :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U104 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U11 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U12 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U13 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U14 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U15 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U16 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U21 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U22 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U23 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U31 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U32 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U33 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U34 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U35 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U36 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U41 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U42 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U51 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U61 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U62 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U71 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U72 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U81 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U82 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U83 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U84 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U91 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U92 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92

Rewrite Strategy: INNERMOST
----------------------------------------

(9) CompletionProof (UPPER BOUND(ID))
The transformation into a RNTS is sound, since:

(a) The obligation is a constructor system where every type has a constant constructor,

(b) The following defined symbols do not have to be completely defined, as they can never occur inside other defined symbols:
none

(c) The following functions are completely defined:

   mark_1
   a__isNatKind_1
   a__isNat_1
   a__x_2
   a__U103_3
   a__U101_3
   a__U104_3
   a__U31_3
   a__U51_1
   a__U92_1
   a__U23_1
   a__U42_1
   a__U91_2
   a__U102_3
   a__U71_2
   a__U16_1
   a__U11_3
   a__U72_2
   a__U21_2
   a__plus_2
   a__U81_3
   a__U62_1
   a__U82_3
   a__U36_1
   a__U32_3
   a__U12_3
   a__U83_3
   a__U35_2
   a__U61_2
   a__U84_3
   a__U15_2
   a__U41_2
   a__U14_3
   a__U33_3
   a__U22_2
   a__U34_3
   a__U13_3

Due to the following rules being added:
none

And the following fresh constants: none

----------------------------------------

(10)
Obligation:
Runtime Complexity Weighted TRS where critical functions are completely defined. The underlying TRS is:

Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N) [1]
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N) [1]
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N) [1]
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N)) [1]
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2) [1]
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2) [1]
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2) [1]
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2) [1]
   a__U15(tt, V2) -> a__U16(a__isNat(V2)) [1]
   a__U16(tt) -> tt [1]
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1) [1]
   a__U22(tt, V1) -> a__U23(a__isNat(V1)) [1]
   a__U23(tt) -> tt [1]
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2) [1]
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2) [1]
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2) [1]
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2) [1]
   a__U35(tt, V2) -> a__U36(a__isNat(V2)) [1]
   a__U36(tt) -> tt [1]
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2)) [1]
   a__U42(tt) -> tt [1]
   a__U51(tt) -> tt [1]
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2)) [1]
   a__U62(tt) -> tt [1]
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N) [1]
   a__U72(tt, N) -> mark(N) [1]
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N) [1]
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N) [1]
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N) [1]
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M))) [1]
   a__U91(tt, N) -> a__U92(a__isNatKind(N)) [1]
   a__U92(tt) -> 0 [1]
   a__isNat(0) -> tt [1]
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2) [1]
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1) [1]
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2) [1]
   a__isNatKind(0) -> tt [1]
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2) [1]
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1)) [1]
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2) [1]
   a__plus(N, 0) -> a__U71(a__isNat(N), N) [1]
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N) [1]
   a__x(N, 0) -> a__U91(a__isNat(N), N) [1]
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N) [1]
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3) [1]
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3) [1]
   mark(isNatKind(X)) -> a__isNatKind(X) [1]
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3) [1]
   mark(isNat(X)) -> a__isNat(X) [1]
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3) [1]
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2)) [1]
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2)) [1]
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3) [1]
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3) [1]
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3) [1]
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3) [1]
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2) [1]
   mark(U16(X)) -> a__U16(mark(X)) [1]
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2) [1]
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2) [1]
   mark(U23(X)) -> a__U23(mark(X)) [1]
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3) [1]
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3) [1]
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3) [1]
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3) [1]
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2) [1]
   mark(U36(X)) -> a__U36(mark(X)) [1]
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2) [1]
   mark(U42(X)) -> a__U42(mark(X)) [1]
   mark(U51(X)) -> a__U51(mark(X)) [1]
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2) [1]
   mark(U62(X)) -> a__U62(mark(X)) [1]
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2) [1]
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2) [1]
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3) [1]
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3) [1]
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3) [1]
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3) [1]
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2) [1]
   mark(U92(X)) -> a__U92(mark(X)) [1]
   mark(tt) -> tt [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__U101(X1, X2, X3) -> U101(X1, X2, X3) [1]
   a__U102(X1, X2, X3) -> U102(X1, X2, X3) [1]
   a__isNatKind(X) -> isNatKind(X) [1]
   a__U103(X1, X2, X3) -> U103(X1, X2, X3) [1]
   a__isNat(X) -> isNat(X) [1]
   a__U104(X1, X2, X3) -> U104(X1, X2, X3) [1]
   a__plus(X1, X2) -> plus(X1, X2) [1]
   a__x(X1, X2) -> x(X1, X2) [1]
   a__U11(X1, X2, X3) -> U11(X1, X2, X3) [1]
   a__U12(X1, X2, X3) -> U12(X1, X2, X3) [1]
   a__U13(X1, X2, X3) -> U13(X1, X2, X3) [1]
   a__U14(X1, X2, X3) -> U14(X1, X2, X3) [1]
   a__U15(X1, X2) -> U15(X1, X2) [1]
   a__U16(X) -> U16(X) [1]
   a__U21(X1, X2) -> U21(X1, X2) [1]
   a__U22(X1, X2) -> U22(X1, X2) [1]
   a__U23(X) -> U23(X) [1]
   a__U31(X1, X2, X3) -> U31(X1, X2, X3) [1]
   a__U32(X1, X2, X3) -> U32(X1, X2, X3) [1]
   a__U33(X1, X2, X3) -> U33(X1, X2, X3) [1]
   a__U34(X1, X2, X3) -> U34(X1, X2, X3) [1]
   a__U35(X1, X2) -> U35(X1, X2) [1]
   a__U36(X) -> U36(X) [1]
   a__U41(X1, X2) -> U41(X1, X2) [1]
   a__U42(X) -> U42(X) [1]
   a__U51(X) -> U51(X) [1]
   a__U61(X1, X2) -> U61(X1, X2) [1]
   a__U62(X) -> U62(X) [1]
   a__U71(X1, X2) -> U71(X1, X2) [1]
   a__U72(X1, X2) -> U72(X1, X2) [1]
   a__U81(X1, X2, X3) -> U81(X1, X2, X3) [1]
   a__U82(X1, X2, X3) -> U82(X1, X2, X3) [1]
   a__U83(X1, X2, X3) -> U83(X1, X2, X3) [1]
   a__U84(X1, X2, X3) -> U84(X1, X2, X3) [1]
   a__U91(X1, X2) -> U91(X1, X2) [1]
   a__U92(X) -> U92(X) [1]

The TRS has the following type information:
a__U101 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
tt :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U102 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__isNatKind :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U103 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__isNat :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U104 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__plus :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__x :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
mark :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U11 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U12 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U13 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U14 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U15 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U16 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U21 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U22 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U23 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U31 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U32 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U33 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U34 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U35 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U36 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U41 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U42 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U51 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U61 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U62 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U71 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U72 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U81 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U82 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U83 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U84 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
s :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U91 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U92 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
0 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
plus :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
x :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U101 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U102 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
isNatKind :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U103 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
isNat :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U104 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U11 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U12 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U13 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U14 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U15 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U16 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U21 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U22 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U23 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U31 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U32 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U33 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U34 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U35 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U36 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U41 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U42 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U51 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U61 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U62 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U71 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U72 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U81 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U82 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U83 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U84 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U91 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U92 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92

Rewrite Strategy: INNERMOST
----------------------------------------

(11) CompletionProof (UPPER BOUND(ID))
The TRS is a completely defined constructor system, as every type has a constant constructor and the following rules were added:
none

And the following fresh constants: none

----------------------------------------

(12)
Obligation:
Runtime Complexity Weighted TRS where all functions are completely defined. The underlying TRS is:

Runtime Complexity Weighted TRS with Types.
The TRS R consists of the following rules:

   a__U101(tt, M, N) -> a__U102(a__isNatKind(M), M, N) [1]
   a__U102(tt, M, N) -> a__U103(a__isNat(N), M, N) [1]
   a__U103(tt, M, N) -> a__U104(a__isNatKind(N), M, N) [1]
   a__U104(tt, M, N) -> a__plus(a__x(mark(N), mark(M)), mark(N)) [1]
   a__U11(tt, V1, V2) -> a__U12(a__isNatKind(V1), V1, V2) [1]
   a__U12(tt, V1, V2) -> a__U13(a__isNatKind(V2), V1, V2) [1]
   a__U13(tt, V1, V2) -> a__U14(a__isNatKind(V2), V1, V2) [1]
   a__U14(tt, V1, V2) -> a__U15(a__isNat(V1), V2) [1]
   a__U15(tt, V2) -> a__U16(a__isNat(V2)) [1]
   a__U16(tt) -> tt [1]
   a__U21(tt, V1) -> a__U22(a__isNatKind(V1), V1) [1]
   a__U22(tt, V1) -> a__U23(a__isNat(V1)) [1]
   a__U23(tt) -> tt [1]
   a__U31(tt, V1, V2) -> a__U32(a__isNatKind(V1), V1, V2) [1]
   a__U32(tt, V1, V2) -> a__U33(a__isNatKind(V2), V1, V2) [1]
   a__U33(tt, V1, V2) -> a__U34(a__isNatKind(V2), V1, V2) [1]
   a__U34(tt, V1, V2) -> a__U35(a__isNat(V1), V2) [1]
   a__U35(tt, V2) -> a__U36(a__isNat(V2)) [1]
   a__U36(tt) -> tt [1]
   a__U41(tt, V2) -> a__U42(a__isNatKind(V2)) [1]
   a__U42(tt) -> tt [1]
   a__U51(tt) -> tt [1]
   a__U61(tt, V2) -> a__U62(a__isNatKind(V2)) [1]
   a__U62(tt) -> tt [1]
   a__U71(tt, N) -> a__U72(a__isNatKind(N), N) [1]
   a__U72(tt, N) -> mark(N) [1]
   a__U81(tt, M, N) -> a__U82(a__isNatKind(M), M, N) [1]
   a__U82(tt, M, N) -> a__U83(a__isNat(N), M, N) [1]
   a__U83(tt, M, N) -> a__U84(a__isNatKind(N), M, N) [1]
   a__U84(tt, M, N) -> s(a__plus(mark(N), mark(M))) [1]
   a__U91(tt, N) -> a__U92(a__isNatKind(N)) [1]
   a__U92(tt) -> 0 [1]
   a__isNat(0) -> tt [1]
   a__isNat(plus(V1, V2)) -> a__U11(a__isNatKind(V1), V1, V2) [1]
   a__isNat(s(V1)) -> a__U21(a__isNatKind(V1), V1) [1]
   a__isNat(x(V1, V2)) -> a__U31(a__isNatKind(V1), V1, V2) [1]
   a__isNatKind(0) -> tt [1]
   a__isNatKind(plus(V1, V2)) -> a__U41(a__isNatKind(V1), V2) [1]
   a__isNatKind(s(V1)) -> a__U51(a__isNatKind(V1)) [1]
   a__isNatKind(x(V1, V2)) -> a__U61(a__isNatKind(V1), V2) [1]
   a__plus(N, 0) -> a__U71(a__isNat(N), N) [1]
   a__plus(N, s(M)) -> a__U81(a__isNat(M), M, N) [1]
   a__x(N, 0) -> a__U91(a__isNat(N), N) [1]
   a__x(N, s(M)) -> a__U101(a__isNat(M), M, N) [1]
   mark(U101(X1, X2, X3)) -> a__U101(mark(X1), X2, X3) [1]
   mark(U102(X1, X2, X3)) -> a__U102(mark(X1), X2, X3) [1]
   mark(isNatKind(X)) -> a__isNatKind(X) [1]
   mark(U103(X1, X2, X3)) -> a__U103(mark(X1), X2, X3) [1]
   mark(isNat(X)) -> a__isNat(X) [1]
   mark(U104(X1, X2, X3)) -> a__U104(mark(X1), X2, X3) [1]
   mark(plus(X1, X2)) -> a__plus(mark(X1), mark(X2)) [1]
   mark(x(X1, X2)) -> a__x(mark(X1), mark(X2)) [1]
   mark(U11(X1, X2, X3)) -> a__U11(mark(X1), X2, X3) [1]
   mark(U12(X1, X2, X3)) -> a__U12(mark(X1), X2, X3) [1]
   mark(U13(X1, X2, X3)) -> a__U13(mark(X1), X2, X3) [1]
   mark(U14(X1, X2, X3)) -> a__U14(mark(X1), X2, X3) [1]
   mark(U15(X1, X2)) -> a__U15(mark(X1), X2) [1]
   mark(U16(X)) -> a__U16(mark(X)) [1]
   mark(U21(X1, X2)) -> a__U21(mark(X1), X2) [1]
   mark(U22(X1, X2)) -> a__U22(mark(X1), X2) [1]
   mark(U23(X)) -> a__U23(mark(X)) [1]
   mark(U31(X1, X2, X3)) -> a__U31(mark(X1), X2, X3) [1]
   mark(U32(X1, X2, X3)) -> a__U32(mark(X1), X2, X3) [1]
   mark(U33(X1, X2, X3)) -> a__U33(mark(X1), X2, X3) [1]
   mark(U34(X1, X2, X3)) -> a__U34(mark(X1), X2, X3) [1]
   mark(U35(X1, X2)) -> a__U35(mark(X1), X2) [1]
   mark(U36(X)) -> a__U36(mark(X)) [1]
   mark(U41(X1, X2)) -> a__U41(mark(X1), X2) [1]
   mark(U42(X)) -> a__U42(mark(X)) [1]
   mark(U51(X)) -> a__U51(mark(X)) [1]
   mark(U61(X1, X2)) -> a__U61(mark(X1), X2) [1]
   mark(U62(X)) -> a__U62(mark(X)) [1]
   mark(U71(X1, X2)) -> a__U71(mark(X1), X2) [1]
   mark(U72(X1, X2)) -> a__U72(mark(X1), X2) [1]
   mark(U81(X1, X2, X3)) -> a__U81(mark(X1), X2, X3) [1]
   mark(U82(X1, X2, X3)) -> a__U82(mark(X1), X2, X3) [1]
   mark(U83(X1, X2, X3)) -> a__U83(mark(X1), X2, X3) [1]
   mark(U84(X1, X2, X3)) -> a__U84(mark(X1), X2, X3) [1]
   mark(U91(X1, X2)) -> a__U91(mark(X1), X2) [1]
   mark(U92(X)) -> a__U92(mark(X)) [1]
   mark(tt) -> tt [1]
   mark(s(X)) -> s(mark(X)) [1]
   mark(0) -> 0 [1]
   a__U101(X1, X2, X3) -> U101(X1, X2, X3) [1]
   a__U102(X1, X2, X3) -> U102(X1, X2, X3) [1]
   a__isNatKind(X) -> isNatKind(X) [1]
   a__U103(X1, X2, X3) -> U103(X1, X2, X3) [1]
   a__isNat(X) -> isNat(X) [1]
   a__U104(X1, X2, X3) -> U104(X1, X2, X3) [1]
   a__plus(X1, X2) -> plus(X1, X2) [1]
   a__x(X1, X2) -> x(X1, X2) [1]
   a__U11(X1, X2, X3) -> U11(X1, X2, X3) [1]
   a__U12(X1, X2, X3) -> U12(X1, X2, X3) [1]
   a__U13(X1, X2, X3) -> U13(X1, X2, X3) [1]
   a__U14(X1, X2, X3) -> U14(X1, X2, X3) [1]
   a__U15(X1, X2) -> U15(X1, X2) [1]
   a__U16(X) -> U16(X) [1]
   a__U21(X1, X2) -> U21(X1, X2) [1]
   a__U22(X1, X2) -> U22(X1, X2) [1]
   a__U23(X) -> U23(X) [1]
   a__U31(X1, X2, X3) -> U31(X1, X2, X3) [1]
   a__U32(X1, X2, X3) -> U32(X1, X2, X3) [1]
   a__U33(X1, X2, X3) -> U33(X1, X2, X3) [1]
   a__U34(X1, X2, X3) -> U34(X1, X2, X3) [1]
   a__U35(X1, X2) -> U35(X1, X2) [1]
   a__U36(X) -> U36(X) [1]
   a__U41(X1, X2) -> U41(X1, X2) [1]
   a__U42(X) -> U42(X) [1]
   a__U51(X) -> U51(X) [1]
   a__U61(X1, X2) -> U61(X1, X2) [1]
   a__U62(X) -> U62(X) [1]
   a__U71(X1, X2) -> U71(X1, X2) [1]
   a__U72(X1, X2) -> U72(X1, X2) [1]
   a__U81(X1, X2, X3) -> U81(X1, X2, X3) [1]
   a__U82(X1, X2, X3) -> U82(X1, X2, X3) [1]
   a__U83(X1, X2, X3) -> U83(X1, X2, X3) [1]
   a__U84(X1, X2, X3) -> U84(X1, X2, X3) [1]
   a__U91(X1, X2) -> U91(X1, X2) [1]
   a__U92(X) -> U92(X) [1]

The TRS has the following type information:
a__U101 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
tt :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U102 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__isNatKind :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U103 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__isNat :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U104 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__plus :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__x :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
mark :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U11 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U12 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U13 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U14 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U15 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U16 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U21 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U22 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U23 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U31 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U32 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U33 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U34 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U35 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U36 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U41 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U42 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U51 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U61 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U62 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U71 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U72 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U81 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U82 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U83 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U84 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
s :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U91 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
a__U92 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
0 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
plus :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
x :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U101 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U102 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
isNatKind :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U103 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
isNat :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U104 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U11 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U12 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U13 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U14 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U15 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U16 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U21 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U22 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U23 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U31 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U32 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U33 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U34 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U35 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U36 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U41 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U42 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U51 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U61 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U62 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U71 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U72 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U81 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U82 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U83 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U84 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U91 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92
U92 :: tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92 -> tt:s:0:plus:x:U101:U102:isNatKind:U103:isNat:U104:U11:U12:U13:U14:U15:U16:U21:U22:U23:U31:U32:U33:U34:U35:U36:U41:U42:U51:U61:U62:U71:U72:U81:U82:U83:U84:U91:U92

Rewrite Strategy: INNERMOST
----------------------------------------

(13) CpxTypedWeightedTrsToRntsProof (UPPER BOUND(ID))
Transformed the TRS into an over-approximating RNTS by (improved) Size Abstraction.
The constant constructors are abstracted as follows:

   tt => 1
   0 => 0

----------------------------------------

(14)
Obligation:
Complexity RNTS consisting of the following rules:

   a__U101(z, z', z'') -{ 1 }-> a__U102(a__isNatKind(M), M, N) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U101(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U102(z, z', z'') -{ 1 }-> a__U103(a__isNat(N), M, N) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U102(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U103(z, z', z'') -{ 1 }-> a__U104(a__isNatKind(N), M, N) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U103(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U104(z, z', z'') -{ 1 }-> a__plus(a__x(mark(N), mark(M)), mark(N)) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U104(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U11(z, z', z'') -{ 1 }-> a__U12(a__isNatKind(V1), V1, V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U11(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U12(z, z', z'') -{ 1 }-> a__U13(a__isNatKind(V2), V1, V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U12(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U13(z, z', z'') -{ 1 }-> a__U14(a__isNatKind(V2), V1, V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U13(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U14(z, z', z'') -{ 1 }-> a__U15(a__isNat(V1), V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U14(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U15(z, z') -{ 1 }-> a__U16(a__isNat(V2)) :|: z' = V2, z = 1, V2 >= 0
   a__U15(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U16(z) -{ 1 }-> 1 :|: z = 1
   a__U16(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__U21(z, z') -{ 1 }-> a__U22(a__isNatKind(V1), V1) :|: V1 >= 0, z = 1, z' = V1
   a__U21(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U22(z, z') -{ 1 }-> a__U23(a__isNat(V1)) :|: V1 >= 0, z = 1, z' = V1
   a__U22(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U23(z) -{ 1 }-> 1 :|: z = 1
   a__U23(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__U31(z, z', z'') -{ 1 }-> a__U32(a__isNatKind(V1), V1, V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U31(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U32(z, z', z'') -{ 1 }-> a__U33(a__isNatKind(V2), V1, V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U32(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U33(z, z', z'') -{ 1 }-> a__U34(a__isNatKind(V2), V1, V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U33(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U34(z, z', z'') -{ 1 }-> a__U35(a__isNat(V1), V2) :|: V1 >= 0, z = 1, V2 >= 0, z'' = V2, z' = V1
   a__U34(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U35(z, z') -{ 1 }-> a__U36(a__isNat(V2)) :|: z' = V2, z = 1, V2 >= 0
   a__U35(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U36(z) -{ 1 }-> 1 :|: z = 1
   a__U36(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__U41(z, z') -{ 1 }-> a__U42(a__isNatKind(V2)) :|: z' = V2, z = 1, V2 >= 0
   a__U41(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U42(z) -{ 1 }-> 1 :|: z = 1
   a__U42(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__U51(z) -{ 1 }-> 1 :|: z = 1
   a__U51(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__U61(z, z') -{ 1 }-> a__U62(a__isNatKind(V2)) :|: z' = V2, z = 1, V2 >= 0
   a__U61(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U62(z) -{ 1 }-> 1 :|: z = 1
   a__U62(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__U71(z, z') -{ 1 }-> a__U72(a__isNatKind(N), N) :|: z = 1, z' = N, N >= 0
   a__U71(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U72(z, z') -{ 1 }-> mark(N) :|: z = 1, z' = N, N >= 0
   a__U72(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U81(z, z', z'') -{ 1 }-> a__U82(a__isNatKind(M), M, N) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U81(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U82(z, z', z'') -{ 1 }-> a__U83(a__isNat(N), M, N) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U82(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U83(z, z', z'') -{ 1 }-> a__U84(a__isNatKind(N), M, N) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U83(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U84(z, z', z'') -{ 1 }-> 1 + a__plus(mark(N), mark(M)) :|: z' = M, z = 1, z'' = N, M >= 0, N >= 0
   a__U84(z, z', z'') -{ 1 }-> 1 + X1 + X2 + X3 :|: X1 >= 0, X3 >= 0, X2 >= 0, z = X1, z' = X2, z'' = X3
   a__U91(z, z') -{ 1 }-> a__U92(a__isNatKind(N)) :|: z = 1, z' = N, N >= 0
   a__U91(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__U92(z) -{ 1 }-> 0 :|: z = 1
   a__U92(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__isNat(z) -{ 1 }-> a__U31(a__isNatKind(V1), V1, V2) :|: V1 >= 0, V2 >= 0, z = 1 + V1 + V2
   a__isNat(z) -{ 1 }-> a__U21(a__isNatKind(V1), V1) :|: z = 1 + V1, V1 >= 0
   a__isNat(z) -{ 1 }-> a__U11(a__isNatKind(V1), V1, V2) :|: V1 >= 0, V2 >= 0, z = 1 + V1 + V2
   a__isNat(z) -{ 1 }-> 1 :|: z = 0
   a__isNat(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__isNatKind(z) -{ 1 }-> a__U61(a__isNatKind(V1), V2) :|: V1 >= 0, V2 >= 0, z = 1 + V1 + V2
   a__isNatKind(z) -{ 1 }-> a__U51(a__isNatKind(V1)) :|: z = 1 + V1, V1 >= 0
   a__isNatKind(z) -{ 1 }-> a__U41(a__isNatKind(V1), V2) :|: V1 >= 0, V2 >= 0, z = 1 + V1 + V2
   a__isNatKind(z) -{ 1 }-> 1 :|: z = 0
   a__isNatKind(z) -{ 1 }-> 1 + X :|: X >= 0, z = X
   a__plus(z, z') -{ 1 }-> a__U81(a__isNat(M), M, N) :|: z' = 1 + M, z = N, M >= 0, N >= 0
   a__plus(z, z') -{ 1 }-> a__U71(a__isNat(N), N) :|: z = N, z' = 0, N >= 0
   a__plus(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   a__x(z, z') -{ 1 }-> a__U91(a__isNat(N), N) :|: z = N, z' = 0, N >= 0
   a__x(z, z') -{ 1 }-> a__U101(a__isNat(M), M, N) :|: z' = 1 + M, z = N, M >= 0, N >= 0
   a__x(z, z') -{ 1 }-> 1 + X1 + X2 :|: X1 >= 0, X2 >= 0, z = X1, z' = X2
   mark(z) -{ 1 }-> a__x(mark(X1), mark(X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__plus(mark(X1), mark(X2)) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__isNatKind(X) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__isNat(X) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U92(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U91(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U84(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U83(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U82(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U81(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U72(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U71(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U62(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U61(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U51(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U42(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U41(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U36(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U35(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U34(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U33(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U32(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U31(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U23(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U22(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U21(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U16(mark(X)) :|: z = 1 + X, X >= 0
   mark(z) -{ 1 }-> a__U15(mark(X1), X2) :|: X1 >= 0, X2 >= 0, z = 1 + X1 + X2
   mark(z) -{ 1 }-> a__U14(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U13(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U12(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U11(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U104(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U103(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U102(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> a__U101(mark(X1), X2, X3) :|: X1 >= 0, X3 >= 0, z = 1 + X1 + X2 + X3, X2 >= 0
   mark(z) -{ 1 }-> 1 :|: z = 1
   mark(z) -{ 1 }-> 0 :|: z = 0
   mark(z) -{ 1 }-> 1 + mark(X) :|: z = 1 + X, X >= 0

Only complete derivations are relevant for the runtime complexity.

----------------------------------------

(15) CpxTrsToCdtProof (UPPER BOUND(ID))
Converted Cpx (relative) TRS with rewrite strategy PARALLEL_INNERMOST to CDT
----------------------------------------

(16)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U101(z0, z1, z2) -> c1
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U102(z0, z1, z2) -> c3
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U103(z0, z1, z2) -> c5
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U104(z0, z1, z2) -> c9
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U11(z0, z1, z2) -> c11
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U12(z0, z1, z2) -> c13
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(z0, z1, z2) -> c15
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U14(z0, z1, z2) -> c17
   A__U15(tt, z0) -> c18(A__U16(a__isNat(z0)), A__ISNAT(z0))
   A__U15(z0, z1) -> c19
   A__U16(tt) -> c20
   A__U16(z0) -> c21
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U21(z0, z1) -> c23
   A__U22(tt, z0) -> c24(A__U23(a__isNat(z0)), A__ISNAT(z0))
   A__U22(z0, z1) -> c25
   A__U23(tt) -> c26
   A__U23(z0) -> c27
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U31(z0, z1, z2) -> c29
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U32(z0, z1, z2) -> c31
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(z0, z1, z2) -> c33
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U34(z0, z1, z2) -> c35
   A__U35(tt, z0) -> c36(A__U36(a__isNat(z0)), A__ISNAT(z0))
   A__U35(z0, z1) -> c37
   A__U36(tt) -> c38
   A__U36(z0) -> c39
   A__U41(tt, z0) -> c40(A__U42(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U41(z0, z1) -> c41
   A__U42(tt) -> c42
   A__U42(z0) -> c43
   A__U51(tt) -> c44
   A__U51(z0) -> c45
   A__U61(tt, z0) -> c46(A__U62(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U61(z0, z1) -> c47
   A__U62(tt) -> c48
   A__U62(z0) -> c49
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U71(z0, z1) -> c51
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U72(z0, z1) -> c53
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U81(z0, z1, z2) -> c55
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U82(z0, z1, z2) -> c57
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U83(z0, z1, z2) -> c59
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__U84(z0, z1, z2) -> c62
   A__U91(tt, z0) -> c63(A__U92(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U91(z0, z1) -> c64
   A__U92(tt) -> c65
   A__U92(z0) -> c66
   A__ISNAT(0) -> c67
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(z0) -> c71
   A__ISNATKIND(0) -> c72
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__U51(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(z0) -> c76
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__PLUS(z0, z1) -> c79
   A__X(z0, 0) -> c80(A__U91(a__isNat(z0), z0), A__ISNAT(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, z1) -> c82
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U16(z0)) -> c98(A__U16(mark(z0)), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U23(z0)) -> c101(A__U23(mark(z0)), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U36(z0)) -> c107(A__U36(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U42(z0)) -> c109(A__U42(mark(z0)), MARK(z0))
   MARK(U51(z0)) -> c110(A__U51(mark(z0)), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U62(z0)) -> c112(A__U62(mark(z0)), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(U92(z0)) -> c120(A__U92(mark(z0)), MARK(z0))
   MARK(tt) -> c121
   MARK(s(z0)) -> c122(MARK(z0))
   MARK(0) -> c123
S tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U101(z0, z1, z2) -> c1
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U102(z0, z1, z2) -> c3
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U103(z0, z1, z2) -> c5
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U104(z0, z1, z2) -> c9
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U11(z0, z1, z2) -> c11
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U12(z0, z1, z2) -> c13
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(z0, z1, z2) -> c15
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U14(z0, z1, z2) -> c17
   A__U15(tt, z0) -> c18(A__U16(a__isNat(z0)), A__ISNAT(z0))
   A__U15(z0, z1) -> c19
   A__U16(tt) -> c20
   A__U16(z0) -> c21
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U21(z0, z1) -> c23
   A__U22(tt, z0) -> c24(A__U23(a__isNat(z0)), A__ISNAT(z0))
   A__U22(z0, z1) -> c25
   A__U23(tt) -> c26
   A__U23(z0) -> c27
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U31(z0, z1, z2) -> c29
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U32(z0, z1, z2) -> c31
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(z0, z1, z2) -> c33
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U34(z0, z1, z2) -> c35
   A__U35(tt, z0) -> c36(A__U36(a__isNat(z0)), A__ISNAT(z0))
   A__U35(z0, z1) -> c37
   A__U36(tt) -> c38
   A__U36(z0) -> c39
   A__U41(tt, z0) -> c40(A__U42(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U41(z0, z1) -> c41
   A__U42(tt) -> c42
   A__U42(z0) -> c43
   A__U51(tt) -> c44
   A__U51(z0) -> c45
   A__U61(tt, z0) -> c46(A__U62(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U61(z0, z1) -> c47
   A__U62(tt) -> c48
   A__U62(z0) -> c49
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U71(z0, z1) -> c51
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U72(z0, z1) -> c53
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U81(z0, z1, z2) -> c55
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U82(z0, z1, z2) -> c57
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U83(z0, z1, z2) -> c59
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__U84(z0, z1, z2) -> c62
   A__U91(tt, z0) -> c63(A__U92(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U91(z0, z1) -> c64
   A__U92(tt) -> c65
   A__U92(z0) -> c66
   A__ISNAT(0) -> c67
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(z0) -> c71
   A__ISNATKIND(0) -> c72
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__U51(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(z0) -> c76
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__PLUS(z0, z1) -> c79
   A__X(z0, 0) -> c80(A__U91(a__isNat(z0), z0), A__ISNAT(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, z1) -> c82
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U16(z0)) -> c98(A__U16(mark(z0)), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U23(z0)) -> c101(A__U23(mark(z0)), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U36(z0)) -> c107(A__U36(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U42(z0)) -> c109(A__U42(mark(z0)), MARK(z0))
   MARK(U51(z0)) -> c110(A__U51(mark(z0)), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U62(z0)) -> c112(A__U62(mark(z0)), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(U92(z0)) -> c120(A__U92(mark(z0)), MARK(z0))
   MARK(tt) -> c121
   MARK(s(z0)) -> c122(MARK(z0))
   MARK(0) -> c123
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U15_2, A__U16_1, A__U21_2, A__U22_2, A__U23_1, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U35_2, A__U36_1, A__U41_2, A__U42_1, A__U51_1, A__U61_2, A__U62_1, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__U91_2, A__U92_1, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1

Compound Symbols:   c_2, c1, c2_2, c3, c4_2, c5, c6_3, c7_3, c8_2, c9, c10_2, c11, c12_2, c13, c14_2, c15, c16_2, c17, c18_2, c19, c20, c21, c22_2, c23, c24_2, c25, c26, c27, c28_2, c29, c30_2, c31, c32_2, c33, c34_2, c35, c36_2, c37, c38, c39, c40_2, c41, c42, c43, c44, c45, c46_2, c47, c48, c49, c50_2, c51, c52_1, c53, c54_2, c55, c56_2, c57, c58_2, c59, c60_2, c61_2, c62, c63_2, c64, c65, c66, c67, c68_2, c69_2, c70_2, c71, c72, c73_2, c74_2, c75_2, c76, c77_2, c78_2, c79, c80_2, c81_2, c82, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c98_2, c99_2, c100_2, c101_2, c102_2, c103_2, c104_2, c105_2, c106_2, c107_2, c108_2, c109_2, c110_2, c111_2, c112_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c120_2, c121, c122_1, c123


----------------------------------------

(17) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 47 trailing nodes:
   A__U42(tt) -> c42
   A__U23(z0) -> c27
   A__U84(z0, z1, z2) -> c62
   A__U14(z0, z1, z2) -> c17
   MARK(tt) -> c121
   A__U16(z0) -> c21
   A__U81(z0, z1, z2) -> c55
   A__U51(z0) -> c45
   A__U15(z0, z1) -> c19
   A__ISNAT(0) -> c67
   A__U36(tt) -> c38
   A__U32(z0, z1, z2) -> c31
   A__U12(z0, z1, z2) -> c13
   A__ISNATKIND(z0) -> c76
   A__U71(z0, z1) -> c51
   A__U82(z0, z1, z2) -> c57
   A__U41(z0, z1) -> c41
   MARK(0) -> c123
   A__U35(z0, z1) -> c37
   A__U72(z0, z1) -> c53
   A__ISNATKIND(0) -> c72
   A__U31(z0, z1, z2) -> c29
   A__U102(z0, z1, z2) -> c3
   A__U11(z0, z1, z2) -> c11
   A__U13(z0, z1, z2) -> c15
   A__U103(z0, z1, z2) -> c5
   A__U92(tt) -> c65
   A__U51(tt) -> c44
   A__U42(z0) -> c43
   A__U22(z0, z1) -> c25
   A__U16(tt) -> c20
   A__U23(tt) -> c26
   A__U21(z0, z1) -> c23
   A__U36(z0) -> c39
   A__U34(z0, z1, z2) -> c35
   A__U91(z0, z1) -> c64
   A__U33(z0, z1, z2) -> c33
   A__X(z0, z1) -> c82
   A__U104(z0, z1, z2) -> c9
   A__U101(z0, z1, z2) -> c1
   A__U61(z0, z1) -> c47
   A__ISNAT(z0) -> c71
   A__U62(tt) -> c48
   A__U62(z0) -> c49
   A__U92(z0) -> c66
   A__U83(z0, z1, z2) -> c59
   A__PLUS(z0, z1) -> c79

----------------------------------------

(18)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U15(tt, z0) -> c18(A__U16(a__isNat(z0)), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U22(tt, z0) -> c24(A__U23(a__isNat(z0)), A__ISNAT(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__U36(a__isNat(z0)), A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__U42(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__U62(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__U91(tt, z0) -> c63(A__U92(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__U51(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, 0) -> c80(A__U91(a__isNat(z0), z0), A__ISNAT(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U16(z0)) -> c98(A__U16(mark(z0)), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U23(z0)) -> c101(A__U23(mark(z0)), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U36(z0)) -> c107(A__U36(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U42(z0)) -> c109(A__U42(mark(z0)), MARK(z0))
   MARK(U51(z0)) -> c110(A__U51(mark(z0)), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U62(z0)) -> c112(A__U62(mark(z0)), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(U92(z0)) -> c120(A__U92(mark(z0)), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
S tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U15(tt, z0) -> c18(A__U16(a__isNat(z0)), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U22(tt, z0) -> c24(A__U23(a__isNat(z0)), A__ISNAT(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__U36(a__isNat(z0)), A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__U42(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__U62(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__U91(tt, z0) -> c63(A__U92(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__U51(a__isNatKind(z0)), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, 0) -> c80(A__U91(a__isNat(z0), z0), A__ISNAT(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U16(z0)) -> c98(A__U16(mark(z0)), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U23(z0)) -> c101(A__U23(mark(z0)), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U36(z0)) -> c107(A__U36(mark(z0)), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U42(z0)) -> c109(A__U42(mark(z0)), MARK(z0))
   MARK(U51(z0)) -> c110(A__U51(mark(z0)), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U62(z0)) -> c112(A__U62(mark(z0)), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(U92(z0)) -> c120(A__U92(mark(z0)), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U15_2, A__U21_2, A__U22_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U35_2, A__U41_2, A__U61_2, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__U91_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1

Compound Symbols:   c_2, c2_2, c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c18_2, c22_2, c24_2, c28_2, c30_2, c32_2, c34_2, c36_2, c40_2, c46_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c63_2, c68_2, c69_2, c70_2, c73_2, c74_2, c75_2, c77_2, c78_2, c80_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c98_2, c99_2, c100_2, c101_2, c102_2, c103_2, c104_2, c105_2, c106_2, c107_2, c108_2, c109_2, c110_2, c111_2, c112_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c120_2, c122_1


----------------------------------------

(19) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 14 trailing tuple parts
----------------------------------------

(20)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, 0) -> c80(A__U91(a__isNat(z0), z0), A__ISNAT(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
S tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, 0) -> c80(A__U91(a__isNat(z0), z0), A__ISNAT(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2

Compound Symbols:   c_2, c2_2, c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c80_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1


----------------------------------------

(21) CdtGraphSplitRhsProof (BOTH BOUNDS(ID, ID))
Split RHS of tuples not part of any SCC
----------------------------------------

(22)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
S tuples:
   A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2

Compound Symbols:   c_2, c2_2, c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1


----------------------------------------

(23) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U101(tt, z0, z1) -> c(A__U102(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0)) by 
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1), A__ISNATKIND(0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, z0, x1) -> c(A__U102(isNatKind(z0), z0, x1), A__ISNATKIND(z0))

----------------------------------------

(24)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1), A__ISNATKIND(0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, z0, x1) -> c(A__U102(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
S tuples:
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1), A__ISNATKIND(0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, z0, x1) -> c(A__U102(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3

Compound Symbols:   c2_2, c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2


----------------------------------------

(25) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(26)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
S tuples:
   A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3

Compound Symbols:   c2_2, c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1


----------------------------------------

(27) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U102(tt, z0, z1) -> c2(A__U103(a__isNat(z1), z0, z1), A__ISNAT(z1)) by 
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0), A__ISNAT(0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, z0) -> c2(A__U103(isNat(z0), x0, z0), A__ISNAT(z0))

----------------------------------------

(28)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0), A__ISNAT(0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, z0) -> c2(A__U103(isNat(z0), x0, z0), A__ISNAT(z0))
S tuples:
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0), A__ISNAT(0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, z0) -> c2(A__U103(isNat(z0), x0, z0), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3

Compound Symbols:   c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2


----------------------------------------

(29) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(30)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
S tuples:
   A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3

Compound Symbols:   c4_2, c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1


----------------------------------------

(31) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U103(tt, z0, z1) -> c4(A__U104(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1)) by 
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0), A__ISNATKIND(0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, z0) -> c4(A__U104(isNatKind(z0), x0, z0), A__ISNATKIND(z0))

----------------------------------------

(32)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0), A__ISNATKIND(0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, z0) -> c4(A__U104(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
S tuples:
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0), A__ISNATKIND(0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, z0) -> c4(A__U104(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3

Compound Symbols:   c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2


----------------------------------------

(33) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(34)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
S tuples:
   A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1))
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3

Compound Symbols:   c6_3, c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1


----------------------------------------

(35) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U104(tt, z0, z1) -> c6(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z1)) by 
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(mark(tt), mark(x0)), tt), A__X(mark(tt), mark(x0)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(0))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(0))

----------------------------------------

(36)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(mark(tt), mark(x0)), tt), A__X(mark(tt), mark(x0)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(0))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(0))
S tuples:
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(mark(tt), mark(x0)), tt), A__X(mark(tt), mark(x0)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(0))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3

Compound Symbols:   c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3


----------------------------------------

(37) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 5 trailing tuple parts
----------------------------------------

(38)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
S tuples:
   A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0))
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3

Compound Symbols:   c7_3, c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2


----------------------------------------

(39) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U104(tt, z0, z1) -> c7(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), A__X(mark(z1), mark(z0)), MARK(z0)) by 
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(mark(tt), mark(x0)), tt), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(tt))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))

----------------------------------------

(40)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(mark(tt), mark(x0)), tt), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(tt))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
S tuples:
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(mark(tt), mark(x0)), tt), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(tt))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3

Compound Symbols:   c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3


----------------------------------------

(41) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 3 trailing tuple parts
----------------------------------------

(42)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
S tuples:
   A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1))
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3

Compound Symbols:   c8_2, c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2


----------------------------------------

(43) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U104(tt, z0, z1) -> c8(A__PLUS(a__x(mark(z1), mark(z0)), mark(z1)), MARK(z1)) by 
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(mark(tt), mark(x0)), tt), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0), MARK(0))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)), MARK(0))

----------------------------------------

(44)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(mark(tt), mark(x0)), tt), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0), MARK(0))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)), MARK(0))
S tuples:
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(mark(tt), mark(x0)), tt), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0), MARK(0))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3

Compound Symbols:   c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2


----------------------------------------

(45) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(mark(tt), mark(x0)), tt), MARK(tt))

----------------------------------------

(46)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0), MARK(0))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)), MARK(0))
S tuples:
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0), MARK(0))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)), MARK(tt))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3

Compound Symbols:   c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2


----------------------------------------

(47) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 3 trailing tuple parts
----------------------------------------

(48)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
S tuples:
   A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3

Compound Symbols:   c10_2, c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1


----------------------------------------

(49) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U11(tt, z0, z1) -> c10(A__U12(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0)) by 
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1), A__ISNATKIND(0))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, z0, x1) -> c10(A__U12(isNatKind(z0), z0, x1), A__ISNATKIND(z0))

----------------------------------------

(50)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1), A__ISNATKIND(0))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, z0, x1) -> c10(A__U12(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
S tuples:
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1), A__ISNATKIND(0))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, z0, x1) -> c10(A__U12(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3

Compound Symbols:   c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2


----------------------------------------

(51) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(52)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
S tuples:
   A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3

Compound Symbols:   c12_2, c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1


----------------------------------------

(53) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U12(tt, z0, z1) -> c12(A__U13(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1)) by 
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0), A__ISNATKIND(0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, z0) -> c12(A__U13(isNatKind(z0), x0, z0), A__ISNATKIND(z0))

----------------------------------------

(54)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0), A__ISNATKIND(0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, z0) -> c12(A__U13(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
S tuples:
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0), A__ISNATKIND(0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, z0) -> c12(A__U13(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3

Compound Symbols:   c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2


----------------------------------------

(55) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(56)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
S tuples:
   A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3

Compound Symbols:   c14_2, c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1


----------------------------------------

(57) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U13(tt, z0, z1) -> c14(A__U14(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1)) by 
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0), A__ISNATKIND(0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, z0) -> c14(A__U14(isNatKind(z0), x0, z0), A__ISNATKIND(z0))

----------------------------------------

(58)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0), A__ISNATKIND(0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, z0) -> c14(A__U14(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
S tuples:
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0), A__ISNATKIND(0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, z0) -> c14(A__U14(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3

Compound Symbols:   c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2


----------------------------------------

(59) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(60)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
S tuples:
   A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0))
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3

Compound Symbols:   c16_2, c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1


----------------------------------------

(61) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U14(tt, z0, z1) -> c16(A__U15(a__isNat(z0), z1), A__ISNAT(z0)) by 
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1), A__ISNAT(0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, z0, x1) -> c16(A__U15(isNat(z0), x1), A__ISNAT(z0))

----------------------------------------

(62)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1), A__ISNAT(0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, z0, x1) -> c16(A__U15(isNat(z0), x1), A__ISNAT(z0))
S tuples:
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1), A__ISNAT(0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, z0, x1) -> c16(A__U15(isNat(z0), x1), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3

Compound Symbols:   c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2


----------------------------------------

(63) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(64)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
S tuples:
   A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3

Compound Symbols:   c22_2, c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1


----------------------------------------

(65) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U21(tt, z0) -> c22(A__U22(a__isNatKind(z0), z0), A__ISNATKIND(z0)) by 
   A__U21(tt, 0) -> c22(A__U22(tt, 0), A__ISNATKIND(0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, z0) -> c22(A__U22(isNatKind(z0), z0), A__ISNATKIND(z0))

----------------------------------------

(66)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, 0) -> c22(A__U22(tt, 0), A__ISNATKIND(0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, z0) -> c22(A__U22(isNatKind(z0), z0), A__ISNATKIND(z0))
S tuples:
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, 0) -> c22(A__U22(tt, 0), A__ISNATKIND(0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, z0) -> c22(A__U22(isNatKind(z0), z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2

Compound Symbols:   c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2


----------------------------------------

(67) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(68)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
S tuples:
   A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2

Compound Symbols:   c28_2, c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1


----------------------------------------

(69) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U31(tt, z0, z1) -> c28(A__U32(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0)) by 
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1), A__ISNATKIND(0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, z0, x1) -> c28(A__U32(isNatKind(z0), z0, x1), A__ISNATKIND(z0))

----------------------------------------

(70)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1), A__ISNATKIND(0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, z0, x1) -> c28(A__U32(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
S tuples:
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1), A__ISNATKIND(0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, z0, x1) -> c28(A__U32(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3

Compound Symbols:   c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2


----------------------------------------

(71) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(72)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
S tuples:
   A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3

Compound Symbols:   c30_2, c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1


----------------------------------------

(73) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U32(tt, z0, z1) -> c30(A__U33(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1)) by 
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0), A__ISNATKIND(0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, z0) -> c30(A__U33(isNatKind(z0), x0, z0), A__ISNATKIND(z0))

----------------------------------------

(74)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0), A__ISNATKIND(0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, z0) -> c30(A__U33(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
S tuples:
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0), A__ISNATKIND(0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, z0) -> c30(A__U33(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3

Compound Symbols:   c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2


----------------------------------------

(75) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(76)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
S tuples:
   A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U33_3, A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3

Compound Symbols:   c32_2, c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1


----------------------------------------

(77) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U33(tt, z0, z1) -> c32(A__U34(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1)) by 
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0), A__ISNATKIND(0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, z0) -> c32(A__U34(isNatKind(z0), x0, z0), A__ISNATKIND(z0))

----------------------------------------

(78)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0), A__ISNATKIND(0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, z0) -> c32(A__U34(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
S tuples:
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0), A__ISNATKIND(0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, z0) -> c32(A__U34(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3

Compound Symbols:   c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2


----------------------------------------

(79) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(80)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
S tuples:
   A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0))
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U34_3, A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3

Compound Symbols:   c34_2, c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1


----------------------------------------

(81) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U34(tt, z0, z1) -> c34(A__U35(a__isNat(z0), z1), A__ISNAT(z0)) by 
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1), A__ISNAT(0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, z0, x1) -> c34(A__U35(isNat(z0), x1), A__ISNAT(z0))

----------------------------------------

(82)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1), A__ISNAT(0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, z0, x1) -> c34(A__U35(isNat(z0), x1), A__ISNAT(z0))
S tuples:
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1), A__ISNAT(0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, z0, x1) -> c34(A__U35(isNat(z0), x1), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3

Compound Symbols:   c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2


----------------------------------------

(83) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(84)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
S tuples:
   A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U71_2, A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3

Compound Symbols:   c50_2, c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1


----------------------------------------

(85) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U71(tt, z0) -> c50(A__U72(a__isNatKind(z0), z0), A__ISNATKIND(z0)) by 
   A__U71(tt, 0) -> c50(A__U72(tt, 0), A__ISNATKIND(0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, z0) -> c50(A__U72(isNatKind(z0), z0), A__ISNATKIND(z0))

----------------------------------------

(86)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, 0) -> c50(A__U72(tt, 0), A__ISNATKIND(0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, z0) -> c50(A__U72(isNatKind(z0), z0), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, 0) -> c50(A__U72(tt, 0), A__ISNATKIND(0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, z0) -> c50(A__U72(isNatKind(z0), z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2

Compound Symbols:   c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2


----------------------------------------

(87) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(88)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2

Compound Symbols:   c52_1, c54_2, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1


----------------------------------------

(89) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U81(tt, z0, z1) -> c54(A__U82(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0)) by 
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1), A__ISNATKIND(0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, z0, x1) -> c54(A__U82(isNatKind(z0), z0, x1), A__ISNATKIND(z0))

----------------------------------------

(90)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1), A__ISNATKIND(0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, z0, x1) -> c54(A__U82(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1), A__ISNATKIND(0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, z0, x1) -> c54(A__U82(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3

Compound Symbols:   c52_1, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2


----------------------------------------

(91) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(92)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3

Compound Symbols:   c52_1, c56_2, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1


----------------------------------------

(93) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U82(tt, z0, z1) -> c56(A__U83(a__isNat(z1), z0, z1), A__ISNAT(z1)) by 
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0), A__ISNAT(0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, z0) -> c56(A__U83(isNat(z0), x0, z0), A__ISNAT(z0))

----------------------------------------

(94)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0), A__ISNAT(0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, z0) -> c56(A__U83(isNat(z0), x0, z0), A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0), A__ISNAT(0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, z0) -> c56(A__U83(isNat(z0), x0, z0), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3

Compound Symbols:   c52_1, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2


----------------------------------------

(95) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(96)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U83_3, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3

Compound Symbols:   c52_1, c58_2, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1


----------------------------------------

(97) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U83(tt, z0, z1) -> c58(A__U84(a__isNatKind(z1), z0, z1), A__ISNATKIND(z1)) by 
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0), A__ISNATKIND(0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, z0) -> c58(A__U84(isNatKind(z0), x0, z0), A__ISNATKIND(z0))

----------------------------------------

(98)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0), A__ISNATKIND(0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, z0) -> c58(A__U84(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0), A__ISNATKIND(0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, z0) -> c58(A__U84(isNatKind(z0), x0, z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3

Compound Symbols:   c52_1, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2


----------------------------------------

(99) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(100)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3

Compound Symbols:   c52_1, c60_2, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1


----------------------------------------

(101) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U84(tt, z0, z1) -> c60(A__PLUS(mark(z1), mark(z0)), MARK(z1)) by 
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, tt, x1) -> c60(A__PLUS(mark(x1), tt), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)), MARK(tt))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)), MARK(0))

----------------------------------------

(102)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, tt, x1) -> c60(A__PLUS(mark(x1), tt), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)), MARK(tt))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)), MARK(0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, tt, x1) -> c60(A__PLUS(mark(x1), tt), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)), MARK(tt))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3

Compound Symbols:   c52_1, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2


----------------------------------------

(103) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 3 trailing tuple parts
----------------------------------------

(104)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__U84_3, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3

Compound Symbols:   c52_1, c61_2, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1


----------------------------------------

(105) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__U84(tt, z0, z1) -> c61(A__PLUS(mark(z1), mark(z0)), MARK(z0)) by 
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, tt, x1) -> c61(A__PLUS(mark(x1), tt), MARK(tt))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0), MARK(0))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))

----------------------------------------

(106)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, tt, x1) -> c61(A__PLUS(mark(x1), tt), MARK(tt))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0), MARK(0))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, tt, x1) -> c61(A__PLUS(mark(x1), tt), MARK(tt))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0), MARK(0))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2


----------------------------------------

(107) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   A__U84(tt, tt, x1) -> c61(A__PLUS(mark(x1), tt), MARK(tt))

----------------------------------------

(108)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0), MARK(0))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0), MARK(0))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2


----------------------------------------

(109) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing tuple parts
----------------------------------------

(110)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c68_2, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1


----------------------------------------

(111) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__ISNAT(plus(z0, z1)) -> c68(A__U11(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0)) by 
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1), A__ISNATKIND(0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(z0, x1)) -> c68(A__U11(isNatKind(z0), z0, x1), A__ISNATKIND(z0))

----------------------------------------

(112)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1), A__ISNATKIND(0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(z0, x1)) -> c68(A__U11(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1), A__ISNATKIND(0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(z0, x1)) -> c68(A__U11(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2


----------------------------------------

(113) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(114)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c69_2, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1


----------------------------------------

(115) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__ISNAT(s(z0)) -> c69(A__U21(a__isNatKind(z0), z0), A__ISNATKIND(z0)) by 
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0), A__ISNATKIND(0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(z0)) -> c69(A__U21(isNatKind(z0), z0), A__ISNATKIND(z0))

----------------------------------------

(116)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0), A__ISNATKIND(0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(z0)) -> c69(A__U21(isNatKind(z0), z0), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0), A__ISNATKIND(0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(z0)) -> c69(A__U21(isNatKind(z0), z0), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2


----------------------------------------

(117) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(118)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNAT_1, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3

Compound Symbols:   c52_1, c70_2, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1


----------------------------------------

(119) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__ISNAT(x(z0, z1)) -> c70(A__U31(a__isNatKind(z0), z0, z1), A__ISNATKIND(z0)) by 
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1), A__ISNATKIND(0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(z0, x1)) -> c70(A__U31(isNatKind(z0), z0, x1), A__ISNATKIND(z0))

----------------------------------------

(120)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1), A__ISNATKIND(0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(z0, x1)) -> c70(A__U31(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1), A__ISNATKIND(0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(z0, x1)) -> c70(A__U31(isNatKind(z0), z0, x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2


----------------------------------------

(121) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(122)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c73_2, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1


----------------------------------------

(123) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__ISNATKIND(plus(z0, z1)) -> c73(A__U41(a__isNatKind(z0), z1), A__ISNATKIND(z0)) by 
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1), A__ISNATKIND(0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__U41(isNatKind(z0), x1), A__ISNATKIND(z0))

----------------------------------------

(124)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1), A__ISNATKIND(0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__U41(isNatKind(z0), x1), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1), A__ISNATKIND(0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__U41(isNatKind(z0), x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2


----------------------------------------

(125) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(126)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__ISNATKIND_1, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c75_2, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1


----------------------------------------

(127) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__ISNATKIND(x(z0, z1)) -> c75(A__U61(a__isNatKind(z0), z1), A__ISNATKIND(z0)) by 
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1), A__ISNATKIND(0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(z0, x1)) -> c75(A__U61(isNatKind(z0), x1), A__ISNATKIND(z0))

----------------------------------------

(128)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1), A__ISNATKIND(0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(z0, x1)) -> c75(A__U61(isNatKind(z0), x1), A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1), A__ISNATKIND(0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(z0, x1)) -> c75(A__U61(isNatKind(z0), x1), A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2


----------------------------------------

(129) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(130)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c77_2, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1


----------------------------------------

(131) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__PLUS(z0, 0) -> c77(A__U71(a__isNat(z0), z0), A__ISNAT(z0)) by 
   A__PLUS(0, 0) -> c77(A__U71(tt, 0), A__ISNAT(0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(z0, 0) -> c77(A__U71(isNat(z0), z0), A__ISNAT(z0))

----------------------------------------

(132)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0), A__ISNAT(0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(z0, 0) -> c77(A__U71(isNat(z0), z0), A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0), A__ISNAT(0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(z0, 0) -> c77(A__U71(isNat(z0), z0), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2


----------------------------------------

(133) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(134)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__PLUS_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1

Compound Symbols:   c52_1, c78_2, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1


----------------------------------------

(135) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__PLUS(z0, s(z1)) -> c78(A__U81(a__isNat(z1), z1, z0), A__ISNAT(z1)) by 
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0), A__ISNAT(0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(z0)) -> c78(A__U81(isNat(z0), z0, x0), A__ISNAT(z0))

----------------------------------------

(136)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0), A__ISNAT(0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(z0)) -> c78(A__U81(isNat(z0), z0, x0), A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0), A__ISNAT(0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(z0)) -> c78(A__U81(isNat(z0), z0, x0), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2


----------------------------------------

(137) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(138)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, A__X_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c81_2, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1


----------------------------------------

(139) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace A__X(z0, s(z1)) -> c81(A__U101(a__isNat(z1), z1, z0), A__ISNAT(z1)) by 
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0), A__ISNAT(0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(z0)) -> c81(A__U101(isNat(z0), z0, x0), A__ISNAT(z0))

----------------------------------------

(140)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0), A__ISNAT(0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(z0)) -> c81(A__U101(isNat(z0), z0, x0), A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0), A__ISNAT(0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(z0)) -> c81(A__U101(isNat(z0), z0, x0), A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2


----------------------------------------

(141) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(142)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c83_2, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1


----------------------------------------

(143) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U101(z0, z1, z2)) -> c83(A__U101(mark(z0), z1, z2), MARK(z0)) by 
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2), MARK(tt))
   MARK(U101(s(z0), x1, x2)) -> c83(A__U101(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U101(0, x1, x2)) -> c83(A__U101(0, x1, x2), MARK(0))

----------------------------------------

(144)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2), MARK(tt))
   MARK(U101(s(z0), x1, x2)) -> c83(A__U101(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U101(0, x1, x2)) -> c83(A__U101(0, x1, x2), MARK(0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2), MARK(tt))
   MARK(U101(s(z0), x1, x2)) -> c83(A__U101(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U101(0, x1, x2)) -> c83(A__U101(0, x1, x2), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2


----------------------------------------

(145) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(U101(0, x1, x2)) -> c83(A__U101(0, x1, x2), MARK(0))

----------------------------------------

(146)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2), MARK(tt))
   MARK(U101(s(z0), x1, x2)) -> c83(A__U101(s(mark(z0)), x1, x2), MARK(s(z0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2), MARK(tt))
   MARK(U101(s(z0), x1, x2)) -> c83(A__U101(s(mark(z0)), x1, x2), MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2


----------------------------------------

(147) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(148)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c84_2, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1


----------------------------------------

(149) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U102(z0, z1, z2)) -> c84(A__U102(mark(z0), z1, z2), MARK(z0)) by 
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2), MARK(tt))
   MARK(U102(s(z0), x1, x2)) -> c84(A__U102(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U102(0, x1, x2)) -> c84(A__U102(0, x1, x2), MARK(0))

----------------------------------------

(150)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2), MARK(tt))
   MARK(U102(s(z0), x1, x2)) -> c84(A__U102(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U102(0, x1, x2)) -> c84(A__U102(0, x1, x2), MARK(0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2), MARK(tt))
   MARK(U102(s(z0), x1, x2)) -> c84(A__U102(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U102(0, x1, x2)) -> c84(A__U102(0, x1, x2), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1, c84_2


----------------------------------------

(151) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(U102(0, x1, x2)) -> c84(A__U102(0, x1, x2), MARK(0))

----------------------------------------

(152)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2), MARK(tt))
   MARK(U102(s(z0), x1, x2)) -> c84(A__U102(s(mark(z0)), x1, x2), MARK(s(z0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2), MARK(tt))
   MARK(U102(s(z0), x1, x2)) -> c84(A__U102(s(mark(z0)), x1, x2), MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1, c84_2


----------------------------------------

(153) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(154)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c85_1, c86_2, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1, c84_2, c84_1


----------------------------------------

(155) CdtNarrowingProof (BOTH BOUNDS(ID, ID))
Use narrowing to replace MARK(U103(z0, z1, z2)) -> c86(A__U103(mark(z0), z1, z2), MARK(z0)) by 
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2), MARK(tt))
   MARK(U103(s(z0), x1, x2)) -> c86(A__U103(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U103(0, x1, x2)) -> c86(A__U103(0, x1, x2), MARK(0))

----------------------------------------

(156)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2), MARK(tt))
   MARK(U103(s(z0), x1, x2)) -> c86(A__U103(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U103(0, x1, x2)) -> c86(A__U103(0, x1, x2), MARK(0))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2), MARK(tt))
   MARK(U103(s(z0), x1, x2)) -> c86(A__U103(s(mark(z0)), x1, x2), MARK(s(z0)))
   MARK(U103(0, x1, x2)) -> c86(A__U103(0, x1, x2), MARK(0))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c85_1, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1, c84_2, c84_1, c86_2


----------------------------------------

(157) CdtLeafRemovalProof (BOTH BOUNDS(ID, ID))
Removed 1 trailing nodes:
   MARK(U103(0, x1, x2)) -> c86(A__U103(0, x1, x2), MARK(0))

----------------------------------------

(158)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2), MARK(tt))
   MARK(U103(s(z0), x1, x2)) -> c86(A__U103(s(mark(z0)), x1, x2), MARK(s(z0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2), MARK(tt))
   MARK(U103(s(z0), x1, x2)) -> c86(A__U103(s(mark(z0)), x1, x2), MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c85_1, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1, c84_2, c84_1, c86_2


----------------------------------------

(159) CdtRhsSimplificationProcessorProof (BOTH BOUNDS(ID, ID))
Removed 2 trailing tuple parts
----------------------------------------

(160)
Obligation:
Complexity Dependency Tuples Problem

Rules:
   a__U101(tt, z0, z1) -> a__U102(a__isNatKind(z0), z0, z1)
   a__U101(z0, z1, z2) -> U101(z0, z1, z2)
   a__U102(tt, z0, z1) -> a__U103(a__isNat(z1), z0, z1)
   a__U102(z0, z1, z2) -> U102(z0, z1, z2)
   a__U103(tt, z0, z1) -> a__U104(a__isNatKind(z1), z0, z1)
   a__U103(z0, z1, z2) -> U103(z0, z1, z2)
   a__U104(tt, z0, z1) -> a__plus(a__x(mark(z1), mark(z0)), mark(z1))
   a__U104(z0, z1, z2) -> U104(z0, z1, z2)
   a__U11(tt, z0, z1) -> a__U12(a__isNatKind(z0), z0, z1)
   a__U11(z0, z1, z2) -> U11(z0, z1, z2)
   a__U12(tt, z0, z1) -> a__U13(a__isNatKind(z1), z0, z1)
   a__U12(z0, z1, z2) -> U12(z0, z1, z2)
   a__U13(tt, z0, z1) -> a__U14(a__isNatKind(z1), z0, z1)
   a__U13(z0, z1, z2) -> U13(z0, z1, z2)
   a__U14(tt, z0, z1) -> a__U15(a__isNat(z0), z1)
   a__U14(z0, z1, z2) -> U14(z0, z1, z2)
   a__U15(tt, z0) -> a__U16(a__isNat(z0))
   a__U15(z0, z1) -> U15(z0, z1)
   a__U16(tt) -> tt
   a__U16(z0) -> U16(z0)
   a__U21(tt, z0) -> a__U22(a__isNatKind(z0), z0)
   a__U21(z0, z1) -> U21(z0, z1)
   a__U22(tt, z0) -> a__U23(a__isNat(z0))
   a__U22(z0, z1) -> U22(z0, z1)
   a__U23(tt) -> tt
   a__U23(z0) -> U23(z0)
   a__U31(tt, z0, z1) -> a__U32(a__isNatKind(z0), z0, z1)
   a__U31(z0, z1, z2) -> U31(z0, z1, z2)
   a__U32(tt, z0, z1) -> a__U33(a__isNatKind(z1), z0, z1)
   a__U32(z0, z1, z2) -> U32(z0, z1, z2)
   a__U33(tt, z0, z1) -> a__U34(a__isNatKind(z1), z0, z1)
   a__U33(z0, z1, z2) -> U33(z0, z1, z2)
   a__U34(tt, z0, z1) -> a__U35(a__isNat(z0), z1)
   a__U34(z0, z1, z2) -> U34(z0, z1, z2)
   a__U35(tt, z0) -> a__U36(a__isNat(z0))
   a__U35(z0, z1) -> U35(z0, z1)
   a__U36(tt) -> tt
   a__U36(z0) -> U36(z0)
   a__U41(tt, z0) -> a__U42(a__isNatKind(z0))
   a__U41(z0, z1) -> U41(z0, z1)
   a__U42(tt) -> tt
   a__U42(z0) -> U42(z0)
   a__U51(tt) -> tt
   a__U51(z0) -> U51(z0)
   a__U61(tt, z0) -> a__U62(a__isNatKind(z0))
   a__U61(z0, z1) -> U61(z0, z1)
   a__U62(tt) -> tt
   a__U62(z0) -> U62(z0)
   a__U71(tt, z0) -> a__U72(a__isNatKind(z0), z0)
   a__U71(z0, z1) -> U71(z0, z1)
   a__U72(tt, z0) -> mark(z0)
   a__U72(z0, z1) -> U72(z0, z1)
   a__U81(tt, z0, z1) -> a__U82(a__isNatKind(z0), z0, z1)
   a__U81(z0, z1, z2) -> U81(z0, z1, z2)
   a__U82(tt, z0, z1) -> a__U83(a__isNat(z1), z0, z1)
   a__U82(z0, z1, z2) -> U82(z0, z1, z2)
   a__U83(tt, z0, z1) -> a__U84(a__isNatKind(z1), z0, z1)
   a__U83(z0, z1, z2) -> U83(z0, z1, z2)
   a__U84(tt, z0, z1) -> s(a__plus(mark(z1), mark(z0)))
   a__U84(z0, z1, z2) -> U84(z0, z1, z2)
   a__U91(tt, z0) -> a__U92(a__isNatKind(z0))
   a__U91(z0, z1) -> U91(z0, z1)
   a__U92(tt) -> 0
   a__U92(z0) -> U92(z0)
   a__isNat(0) -> tt
   a__isNat(plus(z0, z1)) -> a__U11(a__isNatKind(z0), z0, z1)
   a__isNat(s(z0)) -> a__U21(a__isNatKind(z0), z0)
   a__isNat(x(z0, z1)) -> a__U31(a__isNatKind(z0), z0, z1)
   a__isNat(z0) -> isNat(z0)
   a__isNatKind(0) -> tt
   a__isNatKind(plus(z0, z1)) -> a__U41(a__isNatKind(z0), z1)
   a__isNatKind(s(z0)) -> a__U51(a__isNatKind(z0))
   a__isNatKind(x(z0, z1)) -> a__U61(a__isNatKind(z0), z1)
   a__isNatKind(z0) -> isNatKind(z0)
   a__plus(z0, 0) -> a__U71(a__isNat(z0), z0)
   a__plus(z0, s(z1)) -> a__U81(a__isNat(z1), z1, z0)
   a__plus(z0, z1) -> plus(z0, z1)
   a__x(z0, 0) -> a__U91(a__isNat(z0), z0)
   a__x(z0, s(z1)) -> a__U101(a__isNat(z1), z1, z0)
   a__x(z0, z1) -> x(z0, z1)
   mark(U101(z0, z1, z2)) -> a__U101(mark(z0), z1, z2)
   mark(U102(z0, z1, z2)) -> a__U102(mark(z0), z1, z2)
   mark(isNatKind(z0)) -> a__isNatKind(z0)
   mark(U103(z0, z1, z2)) -> a__U103(mark(z0), z1, z2)
   mark(isNat(z0)) -> a__isNat(z0)
   mark(U104(z0, z1, z2)) -> a__U104(mark(z0), z1, z2)
   mark(plus(z0, z1)) -> a__plus(mark(z0), mark(z1))
   mark(x(z0, z1)) -> a__x(mark(z0), mark(z1))
   mark(U11(z0, z1, z2)) -> a__U11(mark(z0), z1, z2)
   mark(U12(z0, z1, z2)) -> a__U12(mark(z0), z1, z2)
   mark(U13(z0, z1, z2)) -> a__U13(mark(z0), z1, z2)
   mark(U14(z0, z1, z2)) -> a__U14(mark(z0), z1, z2)
   mark(U15(z0, z1)) -> a__U15(mark(z0), z1)
   mark(U16(z0)) -> a__U16(mark(z0))
   mark(U21(z0, z1)) -> a__U21(mark(z0), z1)
   mark(U22(z0, z1)) -> a__U22(mark(z0), z1)
   mark(U23(z0)) -> a__U23(mark(z0))
   mark(U31(z0, z1, z2)) -> a__U31(mark(z0), z1, z2)
   mark(U32(z0, z1, z2)) -> a__U32(mark(z0), z1, z2)
   mark(U33(z0, z1, z2)) -> a__U33(mark(z0), z1, z2)
   mark(U34(z0, z1, z2)) -> a__U34(mark(z0), z1, z2)
   mark(U35(z0, z1)) -> a__U35(mark(z0), z1)
   mark(U36(z0)) -> a__U36(mark(z0))
   mark(U41(z0, z1)) -> a__U41(mark(z0), z1)
   mark(U42(z0)) -> a__U42(mark(z0))
   mark(U51(z0)) -> a__U51(mark(z0))
   mark(U61(z0, z1)) -> a__U61(mark(z0), z1)
   mark(U62(z0)) -> a__U62(mark(z0))
   mark(U71(z0, z1)) -> a__U71(mark(z0), z1)
   mark(U72(z0, z1)) -> a__U72(mark(z0), z1)
   mark(U81(z0, z1, z2)) -> a__U81(mark(z0), z1, z2)
   mark(U82(z0, z1, z2)) -> a__U82(mark(z0), z1, z2)
   mark(U83(z0, z1, z2)) -> a__U83(mark(z0), z1, z2)
   mark(U84(z0, z1, z2)) -> a__U84(mark(z0), z1, z2)
   mark(U91(z0, z1)) -> a__U91(mark(z0), z1)
   mark(U92(z0)) -> a__U92(mark(z0))
   mark(tt) -> tt
   mark(s(z0)) -> s(mark(z0))
   mark(0) -> 0
Tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2))
   MARK(U103(s(z0), x1, x2)) -> c86(MARK(s(z0)))
S tuples:
   A__U72(tt, z0) -> c52(MARK(z0))
   MARK(isNatKind(z0)) -> c85(A__ISNATKIND(z0))
   MARK(isNat(z0)) -> c87(A__ISNAT(z0))
   MARK(U104(z0, z1, z2)) -> c88(A__U104(mark(z0), z1, z2), MARK(z0))
   MARK(plus(z0, z1)) -> c89(A__PLUS(mark(z0), mark(z1)), MARK(z0))
   MARK(plus(z0, z1)) -> c90(A__PLUS(mark(z0), mark(z1)), MARK(z1))
   MARK(x(z0, z1)) -> c91(A__X(mark(z0), mark(z1)), MARK(z0))
   MARK(x(z0, z1)) -> c92(A__X(mark(z0), mark(z1)), MARK(z1))
   MARK(U11(z0, z1, z2)) -> c93(A__U11(mark(z0), z1, z2), MARK(z0))
   MARK(U12(z0, z1, z2)) -> c94(A__U12(mark(z0), z1, z2), MARK(z0))
   MARK(U13(z0, z1, z2)) -> c95(A__U13(mark(z0), z1, z2), MARK(z0))
   MARK(U14(z0, z1, z2)) -> c96(A__U14(mark(z0), z1, z2), MARK(z0))
   MARK(U15(z0, z1)) -> c97(A__U15(mark(z0), z1), MARK(z0))
   MARK(U21(z0, z1)) -> c99(A__U21(mark(z0), z1), MARK(z0))
   MARK(U22(z0, z1)) -> c100(A__U22(mark(z0), z1), MARK(z0))
   MARK(U31(z0, z1, z2)) -> c102(A__U31(mark(z0), z1, z2), MARK(z0))
   MARK(U32(z0, z1, z2)) -> c103(A__U32(mark(z0), z1, z2), MARK(z0))
   MARK(U33(z0, z1, z2)) -> c104(A__U33(mark(z0), z1, z2), MARK(z0))
   MARK(U34(z0, z1, z2)) -> c105(A__U34(mark(z0), z1, z2), MARK(z0))
   MARK(U35(z0, z1)) -> c106(A__U35(mark(z0), z1), MARK(z0))
   MARK(U41(z0, z1)) -> c108(A__U41(mark(z0), z1), MARK(z0))
   MARK(U61(z0, z1)) -> c111(A__U61(mark(z0), z1), MARK(z0))
   MARK(U71(z0, z1)) -> c113(A__U71(mark(z0), z1), MARK(z0))
   MARK(U72(z0, z1)) -> c114(A__U72(mark(z0), z1), MARK(z0))
   MARK(U81(z0, z1, z2)) -> c115(A__U81(mark(z0), z1, z2), MARK(z0))
   MARK(U82(z0, z1, z2)) -> c116(A__U82(mark(z0), z1, z2), MARK(z0))
   MARK(U83(z0, z1, z2)) -> c117(A__U83(mark(z0), z1, z2), MARK(z0))
   MARK(U84(z0, z1, z2)) -> c118(A__U84(mark(z0), z1, z2), MARK(z0))
   MARK(U91(z0, z1)) -> c119(A__U91(mark(z0), z1), MARK(z0))
   MARK(s(z0)) -> c122(MARK(z0))
   A__U15(tt, z0) -> c18(A__ISNAT(z0))
   A__U22(tt, z0) -> c24(A__ISNAT(z0))
   A__U35(tt, z0) -> c36(A__ISNAT(z0))
   A__U41(tt, z0) -> c40(A__ISNATKIND(z0))
   A__U61(tt, z0) -> c46(A__ISNATKIND(z0))
   A__U91(tt, z0) -> c63(A__ISNATKIND(z0))
   A__ISNATKIND(s(z0)) -> c74(A__ISNATKIND(z0))
   MARK(U16(z0)) -> c98(MARK(z0))
   MARK(U23(z0)) -> c101(MARK(z0))
   MARK(U36(z0)) -> c107(MARK(z0))
   MARK(U42(z0)) -> c109(MARK(z0))
   MARK(U51(z0)) -> c110(MARK(z0))
   MARK(U62(z0)) -> c112(MARK(z0))
   MARK(U92(z0)) -> c120(MARK(z0))
   A__X(z0, 0) -> c1(A__U91(a__isNat(z0), z0))
   A__X(z0, 0) -> c1(A__ISNAT(z0))
   A__U101(tt, plus(z0, z1), x1) -> c(A__U102(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U101(tt, s(z0), x1) -> c(A__U102(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U101(tt, x(z0, z1), x1) -> c(A__U102(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U101(tt, 0, x1) -> c(A__U102(tt, 0, x1))
   A__U101(tt, z0, x1) -> c(A__ISNATKIND(z0))
   A__U102(tt, x0, plus(z0, z1)) -> c2(A__U103(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U102(tt, x0, s(z0)) -> c2(A__U103(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U102(tt, x0, x(z0, z1)) -> c2(A__U103(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U102(tt, x0, 0) -> c2(A__U103(tt, x0, 0))
   A__U102(tt, x0, z0) -> c2(A__ISNAT(z0))
   A__U103(tt, x0, plus(z0, z1)) -> c4(A__U104(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U103(tt, x0, s(z0)) -> c4(A__U104(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U103(tt, x0, x(z0, z1)) -> c4(A__U104(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U103(tt, x0, 0) -> c4(A__U104(tt, x0, 0))
   A__U103(tt, x0, z0) -> c4(A__ISNATKIND(z0))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c6(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c6(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c6(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c6(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(x1))
   A__U104(tt, tt, x1) -> c6(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c6(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(x1))
   A__U104(tt, 0, x1) -> c6(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c6(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c6(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c6(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c6(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c6(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c6(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c6(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c6(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c6(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c6(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c6(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c6(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c6(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c6(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c6(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c6(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c6(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c6(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c6(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c6(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c6(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c6(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(s(z0)))
   A__U104(tt, x0, tt) -> c6(A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, tt) -> c6(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)))
   A__U104(tt, x0, 0) -> c6(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(mark(0), mark(x0)), 0), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, x1) -> c7(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), A__X(mark(x1), mark(x0)), MARK(x0))
   A__U104(tt, U101(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, U102(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, isNatKind(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), A__X(mark(x1), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, U103(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, isNat(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), A__X(mark(x1), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, U104(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, plus(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), A__X(mark(x1), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, U11(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, U12(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, U13(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, U14(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, U15(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, U16(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), A__X(mark(x1), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, U21(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, U22(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, U23(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), A__X(mark(x1), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, U31(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, U32(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, U33(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, U34(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, U35(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, U36(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), A__X(mark(x1), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, U41(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, U42(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), A__X(mark(x1), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, U51(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), A__X(mark(x1), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, U61(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, U62(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), A__X(mark(x1), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, U71(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, U72(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, U81(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, U82(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, U83(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, U84(z0, z1, z2), x1) -> c7(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), A__X(mark(x1), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, U91(z0, z1), x1) -> c7(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), A__X(mark(x1), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, U92(z0), x1) -> c7(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), A__X(mark(x1), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, s(z0), x1) -> c7(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), A__X(mark(x1), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), A__X(mark(U101(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), A__X(mark(U102(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNatKind(z0)) -> c7(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), A__X(mark(isNatKind(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), A__X(mark(U103(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, isNat(z0)) -> c7(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), A__X(mark(isNat(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), A__X(mark(U104(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, plus(z0, z1)) -> c7(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), A__X(mark(plus(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, x(z0, z1)) -> c7(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), A__X(mark(x(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), A__X(mark(U11(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), A__X(mark(U12(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), A__X(mark(U13(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), A__X(mark(U14(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U15(z0, z1)) -> c7(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), A__X(mark(U15(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U16(z0)) -> c7(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), A__X(mark(U16(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U21(z0, z1)) -> c7(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), A__X(mark(U21(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U22(z0, z1)) -> c7(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), A__X(mark(U22(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U23(z0)) -> c7(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), A__X(mark(U23(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), A__X(mark(U31(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), A__X(mark(U32(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), A__X(mark(U33(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), A__X(mark(U34(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U35(z0, z1)) -> c7(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), A__X(mark(U35(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U36(z0)) -> c7(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), A__X(mark(U36(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U41(z0, z1)) -> c7(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), A__X(mark(U41(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U42(z0)) -> c7(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), A__X(mark(U42(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U51(z0)) -> c7(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), A__X(mark(U51(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U61(z0, z1)) -> c7(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), A__X(mark(U61(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U62(z0)) -> c7(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), A__X(mark(U62(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U71(z0, z1)) -> c7(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), A__X(mark(U71(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U72(z0, z1)) -> c7(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), A__X(mark(U72(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), A__X(mark(U81(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), A__X(mark(U82(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), A__X(mark(U83(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c7(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), A__X(mark(U84(z0, z1, z2)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U91(z0, z1)) -> c7(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), A__X(mark(U91(z0, z1)), mark(x0)), MARK(x0))
   A__U104(tt, x0, U92(z0)) -> c7(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), A__X(mark(U92(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__PLUS(a__x(tt, mark(x0)), mark(tt)), A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, x0, s(z0)) -> c7(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), A__X(mark(s(z0)), mark(x0)), MARK(x0))
   A__U104(tt, x0, 0) -> c7(A__PLUS(a__x(0, mark(x0)), mark(0)), A__X(mark(0), mark(x0)), MARK(x0))
   A__U104(tt, x0, tt) -> c7(A__X(mark(tt), mark(x0)), MARK(x0))
   A__U104(tt, tt, x1) -> c7(A__PLUS(a__x(mark(x1), tt), mark(x1)), A__X(mark(x1), mark(tt)))
   A__U104(tt, 0, x1) -> c7(A__PLUS(a__x(mark(x1), 0), mark(x1)), A__X(mark(x1), mark(0)))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U101(z0, z1, z2)), mark(x0)), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U102(z0, z1, z2)), mark(x0)), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(mark(isNatKind(z0)), mark(x0)), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U103(z0, z1, z2)), mark(x0)), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(mark(isNat(z0)), mark(x0)), a__isNat(z0)), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U104(z0, z1, z2)), mark(x0)), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(mark(plus(z0, z1)), mark(x0)), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(mark(x(z0, z1)), mark(x0)), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U11(z0, z1, z2)), mark(x0)), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U12(z0, z1, z2)), mark(x0)), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U13(z0, z1, z2)), mark(x0)), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U14(z0, z1, z2)), mark(x0)), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(mark(U15(z0, z1)), mark(x0)), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(mark(U16(z0)), mark(x0)), a__U16(mark(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(mark(U21(z0, z1)), mark(x0)), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(mark(U22(z0, z1)), mark(x0)), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(mark(U23(z0)), mark(x0)), a__U23(mark(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U31(z0, z1, z2)), mark(x0)), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U32(z0, z1, z2)), mark(x0)), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U33(z0, z1, z2)), mark(x0)), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U34(z0, z1, z2)), mark(x0)), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(mark(U35(z0, z1)), mark(x0)), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(mark(U36(z0)), mark(x0)), a__U36(mark(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(mark(U41(z0, z1)), mark(x0)), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(mark(U42(z0)), mark(x0)), a__U42(mark(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(mark(U51(z0)), mark(x0)), a__U51(mark(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(mark(U61(z0, z1)), mark(x0)), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(mark(U62(z0)), mark(x0)), a__U62(mark(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(mark(U71(z0, z1)), mark(x0)), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(mark(U72(z0, z1)), mark(x0)), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U81(z0, z1, z2)), mark(x0)), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U82(z0, z1, z2)), mark(x0)), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U83(z0, z1, z2)), mark(x0)), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(mark(U84(z0, z1, z2)), mark(x0)), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(mark(U91(z0, z1)), mark(x0)), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(mark(U92(z0)), mark(x0)), a__U92(mark(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(mark(s(z0)), mark(x0)), s(mark(z0))), MARK(s(z0)))
   A__U104(tt, x0, x1) -> c8(A__PLUS(x(mark(x1), mark(x0)), mark(x1)), MARK(x1))
   A__U104(tt, U101(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U101(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U102(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U102(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNatKind(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNatKind(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U103(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U103(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, isNat(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__isNat(z0)), mark(x1)), MARK(x1))
   A__U104(tt, U104(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U104(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, plus(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__plus(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, x(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__x(mark(z0), mark(z1))), mark(x1)), MARK(x1))
   A__U104(tt, U11(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U11(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U12(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U12(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U13(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U13(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U14(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U14(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U15(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U15(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U16(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U16(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U21(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U21(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U22(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U22(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U23(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U23(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U31(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U31(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U32(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U32(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U33(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U33(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U34(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U34(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U35(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U35(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U36(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U36(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U41(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U41(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U42(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U42(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U51(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U51(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U61(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U61(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U62(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U62(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, U71(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U71(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U72(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U72(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U81(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U81(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U82(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U82(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U83(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U83(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U84(z0, z1, z2), x1) -> c8(A__PLUS(a__x(mark(x1), a__U84(mark(z0), z1, z2)), mark(x1)), MARK(x1))
   A__U104(tt, U91(z0, z1), x1) -> c8(A__PLUS(a__x(mark(x1), a__U91(mark(z0), z1)), mark(x1)), MARK(x1))
   A__U104(tt, U92(z0), x1) -> c8(A__PLUS(a__x(mark(x1), a__U92(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, tt, x1) -> c8(A__PLUS(a__x(mark(x1), tt), mark(x1)), MARK(x1))
   A__U104(tt, s(z0), x1) -> c8(A__PLUS(a__x(mark(x1), s(mark(z0))), mark(x1)), MARK(x1))
   A__U104(tt, 0, x1) -> c8(A__PLUS(a__x(mark(x1), 0), mark(x1)), MARK(x1))
   A__U104(tt, x0, U101(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U101(mark(z0), z1, z2), mark(x0)), mark(U101(z0, z1, z2))), MARK(U101(z0, z1, z2)))
   A__U104(tt, x0, U102(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U102(mark(z0), z1, z2), mark(x0)), mark(U102(z0, z1, z2))), MARK(U102(z0, z1, z2)))
   A__U104(tt, x0, isNatKind(z0)) -> c8(A__PLUS(a__x(a__isNatKind(z0), mark(x0)), mark(isNatKind(z0))), MARK(isNatKind(z0)))
   A__U104(tt, x0, U103(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U103(mark(z0), z1, z2), mark(x0)), mark(U103(z0, z1, z2))), MARK(U103(z0, z1, z2)))
   A__U104(tt, x0, isNat(z0)) -> c8(A__PLUS(a__x(a__isNat(z0), mark(x0)), mark(isNat(z0))), MARK(isNat(z0)))
   A__U104(tt, x0, U104(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U104(mark(z0), z1, z2), mark(x0)), mark(U104(z0, z1, z2))), MARK(U104(z0, z1, z2)))
   A__U104(tt, x0, plus(z0, z1)) -> c8(A__PLUS(a__x(a__plus(mark(z0), mark(z1)), mark(x0)), mark(plus(z0, z1))), MARK(plus(z0, z1)))
   A__U104(tt, x0, x(z0, z1)) -> c8(A__PLUS(a__x(a__x(mark(z0), mark(z1)), mark(x0)), mark(x(z0, z1))), MARK(x(z0, z1)))
   A__U104(tt, x0, U11(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U11(mark(z0), z1, z2), mark(x0)), mark(U11(z0, z1, z2))), MARK(U11(z0, z1, z2)))
   A__U104(tt, x0, U12(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U12(mark(z0), z1, z2), mark(x0)), mark(U12(z0, z1, z2))), MARK(U12(z0, z1, z2)))
   A__U104(tt, x0, U13(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U13(mark(z0), z1, z2), mark(x0)), mark(U13(z0, z1, z2))), MARK(U13(z0, z1, z2)))
   A__U104(tt, x0, U14(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U14(mark(z0), z1, z2), mark(x0)), mark(U14(z0, z1, z2))), MARK(U14(z0, z1, z2)))
   A__U104(tt, x0, U15(z0, z1)) -> c8(A__PLUS(a__x(a__U15(mark(z0), z1), mark(x0)), mark(U15(z0, z1))), MARK(U15(z0, z1)))
   A__U104(tt, x0, U16(z0)) -> c8(A__PLUS(a__x(a__U16(mark(z0)), mark(x0)), mark(U16(z0))), MARK(U16(z0)))
   A__U104(tt, x0, U21(z0, z1)) -> c8(A__PLUS(a__x(a__U21(mark(z0), z1), mark(x0)), mark(U21(z0, z1))), MARK(U21(z0, z1)))
   A__U104(tt, x0, U22(z0, z1)) -> c8(A__PLUS(a__x(a__U22(mark(z0), z1), mark(x0)), mark(U22(z0, z1))), MARK(U22(z0, z1)))
   A__U104(tt, x0, U23(z0)) -> c8(A__PLUS(a__x(a__U23(mark(z0)), mark(x0)), mark(U23(z0))), MARK(U23(z0)))
   A__U104(tt, x0, U31(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U31(mark(z0), z1, z2), mark(x0)), mark(U31(z0, z1, z2))), MARK(U31(z0, z1, z2)))
   A__U104(tt, x0, U32(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U32(mark(z0), z1, z2), mark(x0)), mark(U32(z0, z1, z2))), MARK(U32(z0, z1, z2)))
   A__U104(tt, x0, U33(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U33(mark(z0), z1, z2), mark(x0)), mark(U33(z0, z1, z2))), MARK(U33(z0, z1, z2)))
   A__U104(tt, x0, U34(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U34(mark(z0), z1, z2), mark(x0)), mark(U34(z0, z1, z2))), MARK(U34(z0, z1, z2)))
   A__U104(tt, x0, U35(z0, z1)) -> c8(A__PLUS(a__x(a__U35(mark(z0), z1), mark(x0)), mark(U35(z0, z1))), MARK(U35(z0, z1)))
   A__U104(tt, x0, U36(z0)) -> c8(A__PLUS(a__x(a__U36(mark(z0)), mark(x0)), mark(U36(z0))), MARK(U36(z0)))
   A__U104(tt, x0, U41(z0, z1)) -> c8(A__PLUS(a__x(a__U41(mark(z0), z1), mark(x0)), mark(U41(z0, z1))), MARK(U41(z0, z1)))
   A__U104(tt, x0, U42(z0)) -> c8(A__PLUS(a__x(a__U42(mark(z0)), mark(x0)), mark(U42(z0))), MARK(U42(z0)))
   A__U104(tt, x0, U51(z0)) -> c8(A__PLUS(a__x(a__U51(mark(z0)), mark(x0)), mark(U51(z0))), MARK(U51(z0)))
   A__U104(tt, x0, U61(z0, z1)) -> c8(A__PLUS(a__x(a__U61(mark(z0), z1), mark(x0)), mark(U61(z0, z1))), MARK(U61(z0, z1)))
   A__U104(tt, x0, U62(z0)) -> c8(A__PLUS(a__x(a__U62(mark(z0)), mark(x0)), mark(U62(z0))), MARK(U62(z0)))
   A__U104(tt, x0, U71(z0, z1)) -> c8(A__PLUS(a__x(a__U71(mark(z0), z1), mark(x0)), mark(U71(z0, z1))), MARK(U71(z0, z1)))
   A__U104(tt, x0, U72(z0, z1)) -> c8(A__PLUS(a__x(a__U72(mark(z0), z1), mark(x0)), mark(U72(z0, z1))), MARK(U72(z0, z1)))
   A__U104(tt, x0, U81(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U81(mark(z0), z1, z2), mark(x0)), mark(U81(z0, z1, z2))), MARK(U81(z0, z1, z2)))
   A__U104(tt, x0, U82(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U82(mark(z0), z1, z2), mark(x0)), mark(U82(z0, z1, z2))), MARK(U82(z0, z1, z2)))
   A__U104(tt, x0, U83(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U83(mark(z0), z1, z2), mark(x0)), mark(U83(z0, z1, z2))), MARK(U83(z0, z1, z2)))
   A__U104(tt, x0, U84(z0, z1, z2)) -> c8(A__PLUS(a__x(a__U84(mark(z0), z1, z2), mark(x0)), mark(U84(z0, z1, z2))), MARK(U84(z0, z1, z2)))
   A__U104(tt, x0, U91(z0, z1)) -> c8(A__PLUS(a__x(a__U91(mark(z0), z1), mark(x0)), mark(U91(z0, z1))), MARK(U91(z0, z1)))
   A__U104(tt, x0, U92(z0)) -> c8(A__PLUS(a__x(a__U92(mark(z0)), mark(x0)), mark(U92(z0))), MARK(U92(z0)))
   A__U104(tt, x0, s(z0)) -> c8(A__PLUS(a__x(s(mark(z0)), mark(x0)), mark(s(z0))), MARK(s(z0)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(mark(0), mark(x0)), 0))
   A__U104(tt, x0, tt) -> c8(A__PLUS(a__x(tt, mark(x0)), mark(tt)))
   A__U104(tt, x0, 0) -> c8(A__PLUS(a__x(0, mark(x0)), mark(0)))
   A__U11(tt, plus(z0, z1), x1) -> c10(A__U12(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U11(tt, s(z0), x1) -> c10(A__U12(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U11(tt, x(z0, z1), x1) -> c10(A__U12(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U11(tt, 0, x1) -> c10(A__U12(tt, 0, x1))
   A__U11(tt, z0, x1) -> c10(A__ISNATKIND(z0))
   A__U12(tt, x0, plus(z0, z1)) -> c12(A__U13(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U12(tt, x0, s(z0)) -> c12(A__U13(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U12(tt, x0, x(z0, z1)) -> c12(A__U13(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U12(tt, x0, 0) -> c12(A__U13(tt, x0, 0))
   A__U12(tt, x0, z0) -> c12(A__ISNATKIND(z0))
   A__U13(tt, x0, plus(z0, z1)) -> c14(A__U14(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U13(tt, x0, s(z0)) -> c14(A__U14(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U13(tt, x0, x(z0, z1)) -> c14(A__U14(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U13(tt, x0, 0) -> c14(A__U14(tt, x0, 0))
   A__U13(tt, x0, z0) -> c14(A__ISNATKIND(z0))
   A__U14(tt, plus(z0, z1), x1) -> c16(A__U15(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U14(tt, s(z0), x1) -> c16(A__U15(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U14(tt, x(z0, z1), x1) -> c16(A__U15(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U14(tt, 0, x1) -> c16(A__U15(tt, x1))
   A__U14(tt, z0, x1) -> c16(A__ISNAT(z0))
   A__U21(tt, plus(z0, z1)) -> c22(A__U22(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U21(tt, s(z0)) -> c22(A__U22(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U21(tt, x(z0, z1)) -> c22(A__U22(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U21(tt, 0) -> c22(A__U22(tt, 0))
   A__U21(tt, z0) -> c22(A__ISNATKIND(z0))
   A__U31(tt, plus(z0, z1), x1) -> c28(A__U32(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U31(tt, s(z0), x1) -> c28(A__U32(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U31(tt, x(z0, z1), x1) -> c28(A__U32(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U31(tt, 0, x1) -> c28(A__U32(tt, 0, x1))
   A__U31(tt, z0, x1) -> c28(A__ISNATKIND(z0))
   A__U32(tt, x0, plus(z0, z1)) -> c30(A__U33(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U32(tt, x0, s(z0)) -> c30(A__U33(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U32(tt, x0, x(z0, z1)) -> c30(A__U33(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U32(tt, x0, 0) -> c30(A__U33(tt, x0, 0))
   A__U32(tt, x0, z0) -> c30(A__ISNATKIND(z0))
   A__U33(tt, x0, plus(z0, z1)) -> c32(A__U34(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U33(tt, x0, s(z0)) -> c32(A__U34(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U33(tt, x0, x(z0, z1)) -> c32(A__U34(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U33(tt, x0, 0) -> c32(A__U34(tt, x0, 0))
   A__U33(tt, x0, z0) -> c32(A__ISNATKIND(z0))
   A__U34(tt, plus(z0, z1), x1) -> c34(A__U35(a__U11(a__isNatKind(z0), z0, z1), x1), A__ISNAT(plus(z0, z1)))
   A__U34(tt, s(z0), x1) -> c34(A__U35(a__U21(a__isNatKind(z0), z0), x1), A__ISNAT(s(z0)))
   A__U34(tt, x(z0, z1), x1) -> c34(A__U35(a__U31(a__isNatKind(z0), z0, z1), x1), A__ISNAT(x(z0, z1)))
   A__U34(tt, 0, x1) -> c34(A__U35(tt, x1))
   A__U34(tt, z0, x1) -> c34(A__ISNAT(z0))
   A__U71(tt, plus(z0, z1)) -> c50(A__U72(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U71(tt, s(z0)) -> c50(A__U72(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__U71(tt, x(z0, z1)) -> c50(A__U72(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U71(tt, 0) -> c50(A__U72(tt, 0))
   A__U71(tt, z0) -> c50(A__ISNATKIND(z0))
   A__U81(tt, plus(z0, z1), x1) -> c54(A__U82(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__U81(tt, s(z0), x1) -> c54(A__U82(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__U81(tt, x(z0, z1), x1) -> c54(A__U82(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__U81(tt, 0, x1) -> c54(A__U82(tt, 0, x1))
   A__U81(tt, z0, x1) -> c54(A__ISNATKIND(z0))
   A__U82(tt, x0, plus(z0, z1)) -> c56(A__U83(a__U11(a__isNatKind(z0), z0, z1), x0, plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__U82(tt, x0, s(z0)) -> c56(A__U83(a__U21(a__isNatKind(z0), z0), x0, s(z0)), A__ISNAT(s(z0)))
   A__U82(tt, x0, x(z0, z1)) -> c56(A__U83(a__U31(a__isNatKind(z0), z0, z1), x0, x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__U82(tt, x0, 0) -> c56(A__U83(tt, x0, 0))
   A__U82(tt, x0, z0) -> c56(A__ISNAT(z0))
   A__U83(tt, x0, plus(z0, z1)) -> c58(A__U84(a__U41(a__isNatKind(z0), z1), x0, plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__U83(tt, x0, s(z0)) -> c58(A__U84(a__U51(a__isNatKind(z0)), x0, s(z0)), A__ISNATKIND(s(z0)))
   A__U83(tt, x0, x(z0, z1)) -> c58(A__U84(a__U61(a__isNatKind(z0), z1), x0, x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__U83(tt, x0, 0) -> c58(A__U84(tt, x0, 0))
   A__U83(tt, x0, z0) -> c58(A__ISNATKIND(z0))
   A__U84(tt, U101(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U102(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNatKind(z0), x1) -> c60(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(x1))
   A__U84(tt, U103(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, isNat(z0), x1) -> c60(A__PLUS(mark(x1), a__isNat(z0)), MARK(x1))
   A__U84(tt, U104(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, plus(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, x(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x1))
   A__U84(tt, U11(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U12(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U13(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U14(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U15(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(x1))
   A__U84(tt, U16(z0), x1) -> c60(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(x1))
   A__U84(tt, U21(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(x1))
   A__U84(tt, U22(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(x1))
   A__U84(tt, U23(z0), x1) -> c60(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(x1))
   A__U84(tt, U31(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U32(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U33(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U34(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U35(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(x1))
   A__U84(tt, U36(z0), x1) -> c60(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(x1))
   A__U84(tt, U41(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(x1))
   A__U84(tt, U42(z0), x1) -> c60(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(x1))
   A__U84(tt, U51(z0), x1) -> c60(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(x1))
   A__U84(tt, U61(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(x1))
   A__U84(tt, U62(z0), x1) -> c60(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(x1))
   A__U84(tt, U71(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(x1))
   A__U84(tt, U72(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(x1))
   A__U84(tt, U81(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U82(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U83(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U84(z0, z1, z2), x1) -> c60(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(x1))
   A__U84(tt, U91(z0, z1), x1) -> c60(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(x1))
   A__U84(tt, U92(z0), x1) -> c60(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(x1))
   A__U84(tt, s(z0), x1) -> c60(A__PLUS(mark(x1), s(mark(z0))), MARK(x1))
   A__U84(tt, 0, x1) -> c60(A__PLUS(mark(x1), 0), MARK(x1))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c60(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(U101(z0, z1, z2)))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c60(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(U102(z0, z1, z2)))
   A__U84(tt, x0, isNatKind(z0)) -> c60(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(isNatKind(z0)))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c60(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(U103(z0, z1, z2)))
   A__U84(tt, x0, isNat(z0)) -> c60(A__PLUS(a__isNat(z0), mark(x0)), MARK(isNat(z0)))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c60(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(U104(z0, z1, z2)))
   A__U84(tt, x0, plus(z0, z1)) -> c60(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(plus(z0, z1)))
   A__U84(tt, x0, x(z0, z1)) -> c60(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x(z0, z1)))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c60(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(U11(z0, z1, z2)))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c60(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(U12(z0, z1, z2)))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c60(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(U13(z0, z1, z2)))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c60(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(U14(z0, z1, z2)))
   A__U84(tt, x0, U15(z0, z1)) -> c60(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(U15(z0, z1)))
   A__U84(tt, x0, U16(z0)) -> c60(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(U16(z0)))
   A__U84(tt, x0, U21(z0, z1)) -> c60(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(U21(z0, z1)))
   A__U84(tt, x0, U22(z0, z1)) -> c60(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(U22(z0, z1)))
   A__U84(tt, x0, U23(z0)) -> c60(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(U23(z0)))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c60(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(U31(z0, z1, z2)))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c60(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(U32(z0, z1, z2)))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c60(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(U33(z0, z1, z2)))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c60(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(U34(z0, z1, z2)))
   A__U84(tt, x0, U35(z0, z1)) -> c60(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(U35(z0, z1)))
   A__U84(tt, x0, U36(z0)) -> c60(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(U36(z0)))
   A__U84(tt, x0, U41(z0, z1)) -> c60(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(U41(z0, z1)))
   A__U84(tt, x0, U42(z0)) -> c60(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(U42(z0)))
   A__U84(tt, x0, U51(z0)) -> c60(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(U51(z0)))
   A__U84(tt, x0, U61(z0, z1)) -> c60(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(U61(z0, z1)))
   A__U84(tt, x0, U62(z0)) -> c60(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(U62(z0)))
   A__U84(tt, x0, U71(z0, z1)) -> c60(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(U71(z0, z1)))
   A__U84(tt, x0, U72(z0, z1)) -> c60(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(U72(z0, z1)))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c60(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(U81(z0, z1, z2)))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c60(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(U82(z0, z1, z2)))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c60(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(U83(z0, z1, z2)))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c60(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(U84(z0, z1, z2)))
   A__U84(tt, x0, U91(z0, z1)) -> c60(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(U91(z0, z1)))
   A__U84(tt, x0, U92(z0)) -> c60(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(U92(z0)))
   A__U84(tt, x0, s(z0)) -> c60(A__PLUS(s(mark(z0)), mark(x0)), MARK(s(z0)))
   A__U84(tt, tt, x1) -> c60(MARK(x1))
   A__U84(tt, x0, tt) -> c60(A__PLUS(tt, mark(x0)))
   A__U84(tt, x0, 0) -> c60(A__PLUS(0, mark(x0)))
   A__U84(tt, U101(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U101(mark(z0), z1, z2)), MARK(U101(z0, z1, z2)))
   A__U84(tt, U102(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U102(mark(z0), z1, z2)), MARK(U102(z0, z1, z2)))
   A__U84(tt, isNatKind(z0), x1) -> c61(A__PLUS(mark(x1), a__isNatKind(z0)), MARK(isNatKind(z0)))
   A__U84(tt, U103(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U103(mark(z0), z1, z2)), MARK(U103(z0, z1, z2)))
   A__U84(tt, isNat(z0), x1) -> c61(A__PLUS(mark(x1), a__isNat(z0)), MARK(isNat(z0)))
   A__U84(tt, U104(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U104(mark(z0), z1, z2)), MARK(U104(z0, z1, z2)))
   A__U84(tt, plus(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__plus(mark(z0), mark(z1))), MARK(plus(z0, z1)))
   A__U84(tt, x(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__x(mark(z0), mark(z1))), MARK(x(z0, z1)))
   A__U84(tt, U11(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U11(mark(z0), z1, z2)), MARK(U11(z0, z1, z2)))
   A__U84(tt, U12(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U12(mark(z0), z1, z2)), MARK(U12(z0, z1, z2)))
   A__U84(tt, U13(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U13(mark(z0), z1, z2)), MARK(U13(z0, z1, z2)))
   A__U84(tt, U14(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U14(mark(z0), z1, z2)), MARK(U14(z0, z1, z2)))
   A__U84(tt, U15(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U15(mark(z0), z1)), MARK(U15(z0, z1)))
   A__U84(tt, U16(z0), x1) -> c61(A__PLUS(mark(x1), a__U16(mark(z0))), MARK(U16(z0)))
   A__U84(tt, U21(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U21(mark(z0), z1)), MARK(U21(z0, z1)))
   A__U84(tt, U22(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U22(mark(z0), z1)), MARK(U22(z0, z1)))
   A__U84(tt, U23(z0), x1) -> c61(A__PLUS(mark(x1), a__U23(mark(z0))), MARK(U23(z0)))
   A__U84(tt, U31(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U31(mark(z0), z1, z2)), MARK(U31(z0, z1, z2)))
   A__U84(tt, U32(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U32(mark(z0), z1, z2)), MARK(U32(z0, z1, z2)))
   A__U84(tt, U33(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U33(mark(z0), z1, z2)), MARK(U33(z0, z1, z2)))
   A__U84(tt, U34(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U34(mark(z0), z1, z2)), MARK(U34(z0, z1, z2)))
   A__U84(tt, U35(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U35(mark(z0), z1)), MARK(U35(z0, z1)))
   A__U84(tt, U36(z0), x1) -> c61(A__PLUS(mark(x1), a__U36(mark(z0))), MARK(U36(z0)))
   A__U84(tt, U41(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U41(mark(z0), z1)), MARK(U41(z0, z1)))
   A__U84(tt, U42(z0), x1) -> c61(A__PLUS(mark(x1), a__U42(mark(z0))), MARK(U42(z0)))
   A__U84(tt, U51(z0), x1) -> c61(A__PLUS(mark(x1), a__U51(mark(z0))), MARK(U51(z0)))
   A__U84(tt, U61(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U61(mark(z0), z1)), MARK(U61(z0, z1)))
   A__U84(tt, U62(z0), x1) -> c61(A__PLUS(mark(x1), a__U62(mark(z0))), MARK(U62(z0)))
   A__U84(tt, U71(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U71(mark(z0), z1)), MARK(U71(z0, z1)))
   A__U84(tt, U72(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U72(mark(z0), z1)), MARK(U72(z0, z1)))
   A__U84(tt, U81(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U81(mark(z0), z1, z2)), MARK(U81(z0, z1, z2)))
   A__U84(tt, U82(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U82(mark(z0), z1, z2)), MARK(U82(z0, z1, z2)))
   A__U84(tt, U83(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U83(mark(z0), z1, z2)), MARK(U83(z0, z1, z2)))
   A__U84(tt, U84(z0, z1, z2), x1) -> c61(A__PLUS(mark(x1), a__U84(mark(z0), z1, z2)), MARK(U84(z0, z1, z2)))
   A__U84(tt, U91(z0, z1), x1) -> c61(A__PLUS(mark(x1), a__U91(mark(z0), z1)), MARK(U91(z0, z1)))
   A__U84(tt, U92(z0), x1) -> c61(A__PLUS(mark(x1), a__U92(mark(z0))), MARK(U92(z0)))
   A__U84(tt, s(z0), x1) -> c61(A__PLUS(mark(x1), s(mark(z0))), MARK(s(z0)))
   A__U84(tt, x0, U101(z0, z1, z2)) -> c61(A__PLUS(a__U101(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U102(z0, z1, z2)) -> c61(A__PLUS(a__U102(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNatKind(z0)) -> c61(A__PLUS(a__isNatKind(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U103(z0, z1, z2)) -> c61(A__PLUS(a__U103(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, isNat(z0)) -> c61(A__PLUS(a__isNat(z0), mark(x0)), MARK(x0))
   A__U84(tt, x0, U104(z0, z1, z2)) -> c61(A__PLUS(a__U104(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, plus(z0, z1)) -> c61(A__PLUS(a__plus(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, x(z0, z1)) -> c61(A__PLUS(a__x(mark(z0), mark(z1)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U11(z0, z1, z2)) -> c61(A__PLUS(a__U11(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U12(z0, z1, z2)) -> c61(A__PLUS(a__U12(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U13(z0, z1, z2)) -> c61(A__PLUS(a__U13(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U14(z0, z1, z2)) -> c61(A__PLUS(a__U14(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U15(z0, z1)) -> c61(A__PLUS(a__U15(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U16(z0)) -> c61(A__PLUS(a__U16(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U21(z0, z1)) -> c61(A__PLUS(a__U21(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U22(z0, z1)) -> c61(A__PLUS(a__U22(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U23(z0)) -> c61(A__PLUS(a__U23(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U31(z0, z1, z2)) -> c61(A__PLUS(a__U31(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U32(z0, z1, z2)) -> c61(A__PLUS(a__U32(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U33(z0, z1, z2)) -> c61(A__PLUS(a__U33(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U34(z0, z1, z2)) -> c61(A__PLUS(a__U34(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U35(z0, z1)) -> c61(A__PLUS(a__U35(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U36(z0)) -> c61(A__PLUS(a__U36(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U41(z0, z1)) -> c61(A__PLUS(a__U41(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U42(z0)) -> c61(A__PLUS(a__U42(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U51(z0)) -> c61(A__PLUS(a__U51(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U61(z0, z1)) -> c61(A__PLUS(a__U61(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U62(z0)) -> c61(A__PLUS(a__U62(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, U71(z0, z1)) -> c61(A__PLUS(a__U71(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U72(z0, z1)) -> c61(A__PLUS(a__U72(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U81(z0, z1, z2)) -> c61(A__PLUS(a__U81(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U82(z0, z1, z2)) -> c61(A__PLUS(a__U82(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U83(z0, z1, z2)) -> c61(A__PLUS(a__U83(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U84(z0, z1, z2)) -> c61(A__PLUS(a__U84(mark(z0), z1, z2), mark(x0)), MARK(x0))
   A__U84(tt, x0, U91(z0, z1)) -> c61(A__PLUS(a__U91(mark(z0), z1), mark(x0)), MARK(x0))
   A__U84(tt, x0, U92(z0)) -> c61(A__PLUS(a__U92(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, tt) -> c61(A__PLUS(tt, mark(x0)), MARK(x0))
   A__U84(tt, x0, s(z0)) -> c61(A__PLUS(s(mark(z0)), mark(x0)), MARK(x0))
   A__U84(tt, x0, 0) -> c61(A__PLUS(0, mark(x0)), MARK(x0))
   A__U84(tt, 0, x1) -> c61(A__PLUS(mark(x1), 0))
   A__ISNAT(plus(plus(z0, z1), x1)) -> c68(A__U11(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(plus(s(z0), x1)) -> c68(A__U11(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(plus(x(z0, z1), x1)) -> c68(A__U11(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(plus(0, x1)) -> c68(A__U11(tt, 0, x1))
   A__ISNAT(plus(z0, x1)) -> c68(A__ISNATKIND(z0))
   A__ISNAT(s(plus(z0, z1))) -> c69(A__U21(a__U41(a__isNatKind(z0), z1), plus(z0, z1)), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(s(s(z0))) -> c69(A__U21(a__U51(a__isNatKind(z0)), s(z0)), A__ISNATKIND(s(z0)))
   A__ISNAT(s(x(z0, z1))) -> c69(A__U21(a__U61(a__isNatKind(z0), z1), x(z0, z1)), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(s(0)) -> c69(A__U21(tt, 0))
   A__ISNAT(s(z0)) -> c69(A__ISNATKIND(z0))
   A__ISNAT(x(plus(z0, z1), x1)) -> c70(A__U31(a__U41(a__isNatKind(z0), z1), plus(z0, z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNAT(x(s(z0), x1)) -> c70(A__U31(a__U51(a__isNatKind(z0)), s(z0), x1), A__ISNATKIND(s(z0)))
   A__ISNAT(x(x(z0, z1), x1)) -> c70(A__U31(a__U61(a__isNatKind(z0), z1), x(z0, z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNAT(x(0, x1)) -> c70(A__U31(tt, 0, x1))
   A__ISNAT(x(z0, x1)) -> c70(A__ISNATKIND(z0))
   A__ISNATKIND(plus(plus(z0, z1), x1)) -> c73(A__U41(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(plus(s(z0), x1)) -> c73(A__U41(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(plus(x(z0, z1), x1)) -> c73(A__U41(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(plus(0, x1)) -> c73(A__U41(tt, x1))
   A__ISNATKIND(plus(z0, x1)) -> c73(A__ISNATKIND(z0))
   A__ISNATKIND(x(plus(z0, z1), x1)) -> c75(A__U61(a__U41(a__isNatKind(z0), z1), x1), A__ISNATKIND(plus(z0, z1)))
   A__ISNATKIND(x(s(z0), x1)) -> c75(A__U61(a__U51(a__isNatKind(z0)), x1), A__ISNATKIND(s(z0)))
   A__ISNATKIND(x(x(z0, z1), x1)) -> c75(A__U61(a__U61(a__isNatKind(z0), z1), x1), A__ISNATKIND(x(z0, z1)))
   A__ISNATKIND(x(0, x1)) -> c75(A__U61(tt, x1))
   A__ISNATKIND(x(z0, x1)) -> c75(A__ISNATKIND(z0))
   A__PLUS(plus(z0, z1), 0) -> c77(A__U71(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1)), A__ISNAT(plus(z0, z1)))
   A__PLUS(s(z0), 0) -> c77(A__U71(a__U21(a__isNatKind(z0), z0), s(z0)), A__ISNAT(s(z0)))
   A__PLUS(x(z0, z1), 0) -> c77(A__U71(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1)), A__ISNAT(x(z0, z1)))
   A__PLUS(0, 0) -> c77(A__U71(tt, 0))
   A__PLUS(z0, 0) -> c77(A__ISNAT(z0))
   A__PLUS(x0, s(plus(z0, z1))) -> c78(A__U81(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__PLUS(x0, s(s(z0))) -> c78(A__U81(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__PLUS(x0, s(x(z0, z1))) -> c78(A__U81(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__PLUS(x0, s(0)) -> c78(A__U81(tt, 0, x0))
   A__PLUS(x0, s(z0)) -> c78(A__ISNAT(z0))
   A__X(x0, s(plus(z0, z1))) -> c81(A__U101(a__U11(a__isNatKind(z0), z0, z1), plus(z0, z1), x0), A__ISNAT(plus(z0, z1)))
   A__X(x0, s(s(z0))) -> c81(A__U101(a__U21(a__isNatKind(z0), z0), s(z0), x0), A__ISNAT(s(z0)))
   A__X(x0, s(x(z0, z1))) -> c81(A__U101(a__U31(a__isNatKind(z0), z0, z1), x(z0, z1), x0), A__ISNAT(x(z0, z1)))
   A__X(x0, s(0)) -> c81(A__U101(tt, 0, x0))
   A__X(x0, s(z0)) -> c81(A__ISNAT(z0))
   MARK(U101(U101(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U101(U102(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U101(isNatKind(z0), x1, x2)) -> c83(A__U101(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U101(U103(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U101(isNat(z0), x1, x2)) -> c83(A__U101(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U101(U104(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U101(plus(z0, z1), x1, x2)) -> c83(A__U101(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U101(x(z0, z1), x1, x2)) -> c83(A__U101(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U101(U11(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U101(U12(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U101(U13(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U101(U14(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U101(U15(z0, z1), x1, x2)) -> c83(A__U101(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U101(U16(z0), x1, x2)) -> c83(A__U101(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U101(U21(z0, z1), x1, x2)) -> c83(A__U101(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U101(U22(z0, z1), x1, x2)) -> c83(A__U101(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U101(U23(z0), x1, x2)) -> c83(A__U101(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U101(U31(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U101(U32(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U101(U33(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U101(U34(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U101(U35(z0, z1), x1, x2)) -> c83(A__U101(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U101(U36(z0), x1, x2)) -> c83(A__U101(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U101(U41(z0, z1), x1, x2)) -> c83(A__U101(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U101(U42(z0), x1, x2)) -> c83(A__U101(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U101(U51(z0), x1, x2)) -> c83(A__U101(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U101(U61(z0, z1), x1, x2)) -> c83(A__U101(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U101(U62(z0), x1, x2)) -> c83(A__U101(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U101(U71(z0, z1), x1, x2)) -> c83(A__U101(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U101(U72(z0, z1), x1, x2)) -> c83(A__U101(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U101(U81(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U101(U82(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U101(U83(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U101(U84(z0, z1, z2), x1, x2)) -> c83(A__U101(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U101(U91(z0, z1), x1, x2)) -> c83(A__U101(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U101(U92(z0), x1, x2)) -> c83(A__U101(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U101(tt, x1, x2)) -> c83(A__U101(tt, x1, x2))
   MARK(U101(s(z0), x1, x2)) -> c83(MARK(s(z0)))
   MARK(U102(U101(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U102(U102(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U102(isNatKind(z0), x1, x2)) -> c84(A__U102(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U102(U103(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U102(isNat(z0), x1, x2)) -> c84(A__U102(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U102(U104(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U102(plus(z0, z1), x1, x2)) -> c84(A__U102(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U102(x(z0, z1), x1, x2)) -> c84(A__U102(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U102(U11(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U102(U12(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U102(U13(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U102(U14(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U102(U15(z0, z1), x1, x2)) -> c84(A__U102(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U102(U16(z0), x1, x2)) -> c84(A__U102(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U102(U21(z0, z1), x1, x2)) -> c84(A__U102(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U102(U22(z0, z1), x1, x2)) -> c84(A__U102(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U102(U23(z0), x1, x2)) -> c84(A__U102(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U102(U31(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U102(U32(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U102(U33(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U102(U34(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U102(U35(z0, z1), x1, x2)) -> c84(A__U102(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U102(U36(z0), x1, x2)) -> c84(A__U102(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U102(U41(z0, z1), x1, x2)) -> c84(A__U102(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U102(U42(z0), x1, x2)) -> c84(A__U102(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U102(U51(z0), x1, x2)) -> c84(A__U102(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U102(U61(z0, z1), x1, x2)) -> c84(A__U102(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U102(U62(z0), x1, x2)) -> c84(A__U102(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U102(U71(z0, z1), x1, x2)) -> c84(A__U102(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U102(U72(z0, z1), x1, x2)) -> c84(A__U102(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U102(U81(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U102(U82(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U102(U83(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U102(U84(z0, z1, z2), x1, x2)) -> c84(A__U102(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U102(U91(z0, z1), x1, x2)) -> c84(A__U102(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U102(U92(z0), x1, x2)) -> c84(A__U102(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U102(tt, x1, x2)) -> c84(A__U102(tt, x1, x2))
   MARK(U102(s(z0), x1, x2)) -> c84(MARK(s(z0)))
   MARK(U103(U101(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U101(mark(z0), z1, z2), x1, x2), MARK(U101(z0, z1, z2)))
   MARK(U103(U102(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U102(mark(z0), z1, z2), x1, x2), MARK(U102(z0, z1, z2)))
   MARK(U103(isNatKind(z0), x1, x2)) -> c86(A__U103(a__isNatKind(z0), x1, x2), MARK(isNatKind(z0)))
   MARK(U103(U103(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U103(mark(z0), z1, z2), x1, x2), MARK(U103(z0, z1, z2)))
   MARK(U103(isNat(z0), x1, x2)) -> c86(A__U103(a__isNat(z0), x1, x2), MARK(isNat(z0)))
   MARK(U103(U104(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U104(mark(z0), z1, z2), x1, x2), MARK(U104(z0, z1, z2)))
   MARK(U103(plus(z0, z1), x1, x2)) -> c86(A__U103(a__plus(mark(z0), mark(z1)), x1, x2), MARK(plus(z0, z1)))
   MARK(U103(x(z0, z1), x1, x2)) -> c86(A__U103(a__x(mark(z0), mark(z1)), x1, x2), MARK(x(z0, z1)))
   MARK(U103(U11(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U11(mark(z0), z1, z2), x1, x2), MARK(U11(z0, z1, z2)))
   MARK(U103(U12(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U12(mark(z0), z1, z2), x1, x2), MARK(U12(z0, z1, z2)))
   MARK(U103(U13(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U13(mark(z0), z1, z2), x1, x2), MARK(U13(z0, z1, z2)))
   MARK(U103(U14(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U14(mark(z0), z1, z2), x1, x2), MARK(U14(z0, z1, z2)))
   MARK(U103(U15(z0, z1), x1, x2)) -> c86(A__U103(a__U15(mark(z0), z1), x1, x2), MARK(U15(z0, z1)))
   MARK(U103(U16(z0), x1, x2)) -> c86(A__U103(a__U16(mark(z0)), x1, x2), MARK(U16(z0)))
   MARK(U103(U21(z0, z1), x1, x2)) -> c86(A__U103(a__U21(mark(z0), z1), x1, x2), MARK(U21(z0, z1)))
   MARK(U103(U22(z0, z1), x1, x2)) -> c86(A__U103(a__U22(mark(z0), z1), x1, x2), MARK(U22(z0, z1)))
   MARK(U103(U23(z0), x1, x2)) -> c86(A__U103(a__U23(mark(z0)), x1, x2), MARK(U23(z0)))
   MARK(U103(U31(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U31(mark(z0), z1, z2), x1, x2), MARK(U31(z0, z1, z2)))
   MARK(U103(U32(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U32(mark(z0), z1, z2), x1, x2), MARK(U32(z0, z1, z2)))
   MARK(U103(U33(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U33(mark(z0), z1, z2), x1, x2), MARK(U33(z0, z1, z2)))
   MARK(U103(U34(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U34(mark(z0), z1, z2), x1, x2), MARK(U34(z0, z1, z2)))
   MARK(U103(U35(z0, z1), x1, x2)) -> c86(A__U103(a__U35(mark(z0), z1), x1, x2), MARK(U35(z0, z1)))
   MARK(U103(U36(z0), x1, x2)) -> c86(A__U103(a__U36(mark(z0)), x1, x2), MARK(U36(z0)))
   MARK(U103(U41(z0, z1), x1, x2)) -> c86(A__U103(a__U41(mark(z0), z1), x1, x2), MARK(U41(z0, z1)))
   MARK(U103(U42(z0), x1, x2)) -> c86(A__U103(a__U42(mark(z0)), x1, x2), MARK(U42(z0)))
   MARK(U103(U51(z0), x1, x2)) -> c86(A__U103(a__U51(mark(z0)), x1, x2), MARK(U51(z0)))
   MARK(U103(U61(z0, z1), x1, x2)) -> c86(A__U103(a__U61(mark(z0), z1), x1, x2), MARK(U61(z0, z1)))
   MARK(U103(U62(z0), x1, x2)) -> c86(A__U103(a__U62(mark(z0)), x1, x2), MARK(U62(z0)))
   MARK(U103(U71(z0, z1), x1, x2)) -> c86(A__U103(a__U71(mark(z0), z1), x1, x2), MARK(U71(z0, z1)))
   MARK(U103(U72(z0, z1), x1, x2)) -> c86(A__U103(a__U72(mark(z0), z1), x1, x2), MARK(U72(z0, z1)))
   MARK(U103(U81(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U81(mark(z0), z1, z2), x1, x2), MARK(U81(z0, z1, z2)))
   MARK(U103(U82(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U82(mark(z0), z1, z2), x1, x2), MARK(U82(z0, z1, z2)))
   MARK(U103(U83(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U83(mark(z0), z1, z2), x1, x2), MARK(U83(z0, z1, z2)))
   MARK(U103(U84(z0, z1, z2), x1, x2)) -> c86(A__U103(a__U84(mark(z0), z1, z2), x1, x2), MARK(U84(z0, z1, z2)))
   MARK(U103(U91(z0, z1), x1, x2)) -> c86(A__U103(a__U91(mark(z0), z1), x1, x2), MARK(U91(z0, z1)))
   MARK(U103(U92(z0), x1, x2)) -> c86(A__U103(a__U92(mark(z0)), x1, x2), MARK(U92(z0)))
   MARK(U103(tt, x1, x2)) -> c86(A__U103(tt, x1, x2))
   MARK(U103(s(z0), x1, x2)) -> c86(MARK(s(z0)))
K tuples:none
Defined Rule Symbols:   a__U101_3, a__U102_3, a__U103_3, a__U104_3, a__U11_3, a__U12_3, a__U13_3, a__U14_3, a__U15_2, a__U16_1, a__U21_2, a__U22_2, a__U23_1, a__U31_3, a__U32_3, a__U33_3, a__U34_3, a__U35_2, a__U36_1, a__U41_2, a__U42_1, a__U51_1, a__U61_2, a__U62_1, a__U71_2, a__U72_2, a__U81_3, a__U82_3, a__U83_3, a__U84_3, a__U91_2, a__U92_1, a__isNat_1, a__isNatKind_1, a__plus_2, a__x_2, mark_1

Defined Pair Symbols:   A__U72_2, MARK_1, A__U15_2, A__U22_2, A__U35_2, A__U41_2, A__U61_2, A__U91_2, A__ISNATKIND_1, A__X_2, A__U101_3, A__U102_3, A__U103_3, A__U104_3, A__U11_3, A__U12_3, A__U13_3, A__U14_3, A__U21_2, A__U31_3, A__U32_3, A__U33_3, A__U34_3, A__U71_2, A__U81_3, A__U82_3, A__U83_3, A__U84_3, A__ISNAT_1, A__PLUS_2

Compound Symbols:   c52_1, c85_1, c87_1, c88_2, c89_2, c90_2, c91_2, c92_2, c93_2, c94_2, c95_2, c96_2, c97_2, c99_2, c100_2, c102_2, c103_2, c104_2, c105_2, c106_2, c108_2, c111_2, c113_2, c114_2, c115_2, c116_2, c117_2, c118_2, c119_2, c122_1, c18_1, c24_1, c36_1, c40_1, c46_1, c63_1, c74_1, c98_1, c101_1, c107_1, c109_1, c110_1, c112_1, c120_1, c1_1, c_2, c_1, c2_2, c2_1, c4_2, c4_1, c6_3, c6_1, c6_2, c7_3, c7_2, c8_2, c8_1, c10_2, c10_1, c12_2, c12_1, c14_2, c14_1, c16_2, c16_1, c22_2, c22_1, c28_2, c28_1, c30_2, c30_1, c32_2, c32_1, c34_2, c34_1, c50_2, c50_1, c54_2, c54_1, c56_2, c56_1, c58_2, c58_1, c60_2, c60_1, c61_2, c61_1, c68_2, c68_1, c69_2, c69_1, c70_2, c70_1, c73_2, c73_1, c75_2, c75_1, c77_2, c77_1, c78_2, c78_1, c81_2, c81_1, c83_2, c83_1, c84_2, c84_1, c86_2, c86_1